PV=nRT


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Andrea_Torres
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PV=nRT

Postby Andrea_Torres » Sun Feb 02, 2020 8:24 pm

What does each letter stand for?

Charysa Santos 4G
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Re: PV=nRT

Postby Charysa Santos 4G » Sun Feb 02, 2020 8:25 pm

P = Pressure, V = Volume, n = number of moles, R = gas constant, and T = Temperature

KarineKim2L
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Re: PV=nRT

Postby KarineKim2L » Sun Feb 02, 2020 8:26 pm

P stands for pressure, V for volume, n for the moles of gas, R is a constant, T is the temperature.

Samuel Tzeng 1B
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Re: PV=nRT

Postby Samuel Tzeng 1B » Sun Feb 02, 2020 8:31 pm

P is pressure, V is volume, n is # of moles of gas, R is the gas constant, T is temperature

Jesalynne 2F
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Re: PV=nRT

Postby Jesalynne 2F » Sun Feb 02, 2020 8:42 pm

P is pressure, V is volume, n is the number of moles, R is the gas constant (it'll be given to us on the equations and constants sheet), and T is temperature.

RasikaObla_4I
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Re: PV=nRT

Postby RasikaObla_4I » Sun Feb 02, 2020 8:46 pm

P is pressure in atm, V is volume in liters, n is the number of moles, R is the gas constant 8.206 x 10-2 L·atm·K-1·mol-1, and T is the temperature in Kelvin.

Anokhi Patel 2B
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Re: PV=nRT

Postby Anokhi Patel 2B » Sun Feb 02, 2020 8:52 pm

P is pressure, V is volume, n is the number of moles, R is Rydberg's gas constant, and T is temperature.

san_2F
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Re: PV=nRT

Postby san_2F » Sun Feb 02, 2020 9:09 pm

P= pressure, V=volume, n=moles, R=gas constant, T=temperature

EllieSchmidtke_4I
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Re: PV=nRT

Postby EllieSchmidtke_4I » Sun Feb 02, 2020 9:21 pm

P=pressure, v=volume, n=moles of gas, R=the gas constant, T=temperature

Rosa Munoz 2E
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Re: PV=nRT

Postby Rosa Munoz 2E » Mon Feb 10, 2020 8:53 am

Pressure Volume = moles R is a constant T temperature

WGaines_2E
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Re: PV=nRT

Postby WGaines_2E » Tue Feb 11, 2020 10:20 am

P=Pressure
V=Volume
n= #moles
R= gas constant
T= temp

Philip
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Re: PV=nRT

Postby Philip » Mon Mar 09, 2020 11:17 am

Pressure times Volume = moles of gas times the gas constant times the temperature

Leslie Almaraz 4G
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Re: PV=nRT

Postby Leslie Almaraz 4G » Mon Mar 09, 2020 9:53 pm

when do you know you are allowed to use this formula?

jessicasilverstein1F
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Re: PV=nRT

Postby jessicasilverstein1F » Wed Jan 06, 2021 3:23 pm

P = Pressure
V = Volume
n = number of moles
R = gas constant (in Kelvin)
T = Temperature (in Kelvin)

make sure all in right units

Adalia 3E
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Re: PV=nRT

Postby Adalia 3E » Wed Jan 06, 2021 3:24 pm

You'll probably be using this formula whenever the question asks for one of the variables (pressure, volume, number of moles, or temperature) in relation to a gas and gives information that will help you derive the other variables in order to solve it

Joseph_Armani_3K
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Re: PV=nRT

Postby Joseph_Armani_3K » Wed Jan 06, 2021 4:29 pm

P = pressure
V = volume
n = moles
R = gas constant (around 0.08206 I believe)
T = temperature in Kelvin

Joshua Swift
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Re: PV=nRT

Postby Joshua Swift » Wed Jan 06, 2021 9:56 pm

P=pressure
V=volume
n=moles
R=universal gas constant
T=temperature

Morgan Gee 3B
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Re: PV=nRT

Postby Morgan Gee 3B » Wed Jan 06, 2021 10:33 pm

P = pressure
V = volume (usually in liters)
n = moles
R = gas constant
T = temperature (usually in kelvin)

Make sure to be extra careful with units as there are different gas constants based on the different units used for the pressure. For example, there is a different gas constant depending on if the desired or given pressure is atm, bars, etc. Additionally, make sure to convert volumetric units to liters as our gas constants always use liters. Temperature in the gas constant is always in kelvin, while questions may be given in either celsius or kelvin (probably not fahrenheit). To get kelvin from celsius, just add 273.

Ximeng Guo 2K
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Re: PV=nRT

Postby Ximeng Guo 2K » Thu Jan 07, 2021 11:20 am

P = Pressure
V = Volume
n = # of moles
R = gas constant
T = Temperature (in K)

Bella Bursulaya 3G
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Re: PV=nRT

Postby Bella Bursulaya 3G » Thu Jan 07, 2021 11:23 am

P is pressure, and the SI unit is Pascals but often we use bar or atm (be careful to look out for this because it will change which gas constant R you use)
V is volume in liters or m^3
n is the moles
R is the gas constant (varies with pressure and volume)
T is the temperature (in Kelvin)
conversion is K = C˚ + 273.15

Megan ODonnell 3F
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Re: PV=nRT

Postby Megan ODonnell 3F » Thu Jan 07, 2021 12:21 pm

P= pressure
V= volume
n= number of moles
R= gas constant
T = temperature

Samantha Lee 1A
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Re: PV=nRT

Postby Samantha Lee 1A » Thu Jan 07, 2021 1:09 pm

P= pressure (units: atm)
V = volume ((units: Liters)
n = (units: mols)
R = constant (units: L atm mol-1K-1)
T = temperature ((units: Kelvin)

* The units are very important for the equation. Make sure that temperature is in Kelvin, volume is in Liters, and pressure in atm. Those are usually the ones that can be given in different units in problems.

FionaHunter21
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Re: PV=nRT

Postby FionaHunter21 » Thu Jan 07, 2021 2:51 pm

So is R the same constant as the one we used before on the equation sheet?

Kaili Valenzuela 2B
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Re: PV=nRT

Postby Kaili Valenzuela 2B » Thu Jan 07, 2021 5:28 pm

FionaHunter21 wrote:So is R the same constant as the one we used before on the equation sheet?

No the R constant on the equation sheet we have is in hertz which is not useful to us when using this equation so the R constant in this case could be 0.08205746 L⋅atm/mol⋅K but could be different depending what units you use.

Alexandra Ahlschlager 1L
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Re: PV=nRT

Postby Alexandra Ahlschlager 1L » Thu Jan 07, 2021 5:39 pm

Leslie Almaraz 4G wrote:when do you know you are allowed to use this formula?

You would be using this formula if you want to convert between partial pressures and concentrations. For example, if the problem asks you to solve for Kc but you are only given partial pressures, you can plug these values into the equation to get their concentrations (n/V) and solve for Kc. Hope this helps!

SalmaQ
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Re: PV=nRT

Postby SalmaQ » Thu Jan 07, 2021 5:43 pm

Leslie Almaraz 4G wrote:when do you know you are allowed to use this formula?


Hey Leslie,
Just like Alexandra said, you can use this idea gas formula to convert from the concentration Kc to the partial pressure Kp, and vise versa. In order to do that, you would divide V (the volume) by both sides to isolate the P (or Kp); which looks like P=(n/v)RT. From there, n/v basically would be the concentration Kc, which is were you would plug in the Kc in order to find Kp.

I hope this helps!!!

Joey_Okumura_1E
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Re: PV=nRT

Postby Joey_Okumura_1E » Thu Jan 07, 2021 5:47 pm

P = pressure in atm
V = volume in L
n = amount of substance in moles
R = gas constant (0.08206 J*K[*]-1 M[*]-1)
T = temperature in Kelvin

SalmaQ
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Re: PV=nRT

Postby SalmaQ » Thu Jan 07, 2021 5:49 pm

FionaHunter21 wrote:So is R the same constant as the one we used before on the equation sheet?


Hey Fiona, the R constant would be gas constant which is 0.082057 L atm mol^-1 K^-1.

Hope this helps!

Yeonjoo Kim 2B
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Re: PV=nRT

Postby Yeonjoo Kim 2B » Thu Jan 07, 2021 6:24 pm

P=Pressure
V=Volume
n=Number of moles-Fixed
R=Gast Constant
T=Temperature (Kelvin)-Fixed

Jiapeng Han 1C
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Re: PV=nRT

Postby Jiapeng Han 1C » Thu Jan 07, 2021 7:33 pm

P=pressure
V=volume
n=number of moles
R=constant(8.314J/(mol*K))
T=temperature

Lily Anne Garcia 1C
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Re: PV=nRT

Postby Lily Anne Garcia 1C » Thu Jan 07, 2021 8:56 pm

pressure, volume, number of moles, constant, tempurature

Nina Fukui 2J
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Re: PV=nRT

Postby Nina Fukui 2J » Fri Jan 08, 2021 7:23 am

P=pressure
V=volume of gas
n= number of moles
R= universal gas constant
T= temperature

Mingzi Yang 1E
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Re: PV=nRT

Postby Mingzi Yang 1E » Sun Jan 10, 2021 5:50 pm

P=pressure (in atm)
V=volume of gas (in L)
n= number of moles
R= gas constant
T= temperature (in Kelvin)

n/V = concentration

Tobie Jessup 2E
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Re: PV=nRT

Postby Tobie Jessup 2E » Sun Jan 10, 2021 6:39 pm

Thanks everyone! ^

Maddie Turk Disc 2J
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Re: PV=nRT

Postby Maddie Turk Disc 2J » Sun Jan 10, 2021 6:58 pm

P = pressure
V = volume
n = # of moles
R = gas constant
T = temperature

Matlynn Giles 2E
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Re: PV=nRT

Postby Matlynn Giles 2E » Sun Jan 10, 2021 6:58 pm

Pressure, Volume, # of moles, gas constant, temperature

Nan_Guan_1L
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Re: PV=nRT

Postby Nan_Guan_1L » Sun Jan 10, 2021 7:25 pm

P = Pressure (in atm)
V = Volume (in L)
n = # of moles
R = gas constant
T = Temperature (in K)

remember to use SI units!

305572629
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Re: PV=nRT

Postby 305572629 » Sun Jan 10, 2021 7:35 pm

P= pressure (atm); V= volume (Liters); n=moles; R=gas constant (no units needed); T=temperature (Kelvin)

Hasan Mirza 3F
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Re: PV=nRT

Postby Hasan Mirza 3F » Sun Jan 10, 2021 7:39 pm

Pressure * Volume=n(Moles) * R(Gas Constant 8.314 J/mol·K) * Temperature(Kelvin)

Ethan Goode 2H
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Re: PV=nRT

Postby Ethan Goode 2H » Sun Jan 10, 2021 7:42 pm

P is pressure, V is volume, n is moles, R is the gas constant, and T is temperature.

Colin Squire 3B
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Re: PV=nRT

Postby Colin Squire 3B » Sun Jan 10, 2021 7:56 pm

P=pressure, V=volume, n=number of moles, R= gas constant, T= temperature

joshtully
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Re: PV=nRT

Postby joshtully » Sun Jan 10, 2021 7:59 pm

P is pressure, V is volume, n is number of gaseous moles, R is the gas constant, T is temperature in Kelvin.

Aria Movassaghi 1A
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Re: PV=nRT

Postby Aria Movassaghi 1A » Sun Jan 10, 2021 9:49 pm

P is Pressure, V is Volume, n is number of moles, R is the gas constant, and T is Temperature

Ashley Wagner 2A
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Re: PV=nRT

Postby Ashley Wagner 2A » Sun Jan 10, 2021 9:51 pm

P=Pressure (atm)
V=Volume (L)
n=number of moles
R=gas constant
T=temperature (K)

Chinmayi Mutyala 3H
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Re: PV=nRT

Postby Chinmayi Mutyala 3H » Sun Jan 10, 2021 10:44 pm

P: pressure
V: volume
n: moles
R: R constant
T: temperature

Justin Zhang_1A
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Re: PV=nRT

Postby Justin Zhang_1A » Sun Jan 10, 2021 10:46 pm

P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is the temperature.

Zihan Liu 2K
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Re: PV=nRT

Postby Zihan Liu 2K » Sun Jan 10, 2021 10:47 pm

P = pressure, V = volume, n = number of moles, R = constant, T = temperature in Kelvin (I always forgot that T should be in K haha)

Jaclyn Schwartz 1I
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Re: PV=nRT

Postby Jaclyn Schwartz 1I » Sun Jan 10, 2021 11:21 pm

P is for pressure, V is for volume, n is number of moles of gas, R is the gas constant, T is for temperature

sabrina ghalambor 2J
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Re: PV=nRT

Postby sabrina ghalambor 2J » Sun Jan 10, 2021 11:38 pm

P is pressure, V is volume in liters, n is moles, R is a constant (that changes depending on the unit of pressure), and T is temperature (in Kelvin)

Sean Phen
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Re: PV=nRT

Postby Sean Phen » Mon Jan 11, 2021 12:31 am

P= Pressure, V= volume, n= number of moles, R= gas constant, and T= temperature

Raashi Chaudhari 3B
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Re: PV=nRT

Postby Raashi Chaudhari 3B » Mon Jan 11, 2021 2:00 pm

P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is temperature. You can manipulate this equation in several ways, one of which being P= (n/V)*RT which can also be rewritten as P=concentration*RT because (n/V) is how concentration is calculated.

sophia kosturos 2B
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Re: PV=nRT

Postby sophia kosturos 2B » Mon Jan 11, 2021 6:36 pm

P= pressure, V= volume, n= number of moles, R= gas constant, and T= temperature (in Kelvin).

Keeryth Sandhu 1H
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Re: PV=nRT

Postby Keeryth Sandhu 1H » Mon Jan 11, 2021 6:37 pm

P = pressure, V = volume, n = number of moles, R = gas constant, T = temperature

Ariel Guan 1H
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Re: PV=nRT

Postby Ariel Guan 1H » Mon Jan 11, 2021 6:42 pm

P = pressure (atm)
V= Volume (L)
n = number of mols
R = gas constant (which is given)
T = temp (Kelvin)

emwoodc
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Re: PV=nRT

Postby emwoodc » Tue Jan 12, 2021 12:09 am

P: pressure
V: volume
n: moles
R: constant
T: temperature

Adam Bustamante 1I
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Re: PV=nRT

Postby Adam Bustamante 1I » Fri Jan 15, 2021 9:40 am

P= pressure
V=volume
n= moles
R= gas constant
T= temperature in Kelvin

Jason Knight - 1F
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Re: PV=nRT

Postby Jason Knight - 1F » Fri Jan 15, 2021 9:45 am

Pv=nRT
P = pressure, v = volume, n = moles, R = gas constant, T = temperature in Kelvin.

Alen Huang 2G
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Re: PV=nRT

Postby Alen Huang 2G » Fri Jan 15, 2021 3:52 pm

P=pressure, v= volume, n= number of moles, R= gas constant, T=temperature

MariaCassol1L
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Re: PV=nRT

Postby MariaCassol1L » Fri Jan 15, 2021 5:24 pm

P= pressure in atm
V= volume in liters
n= number of moles
R= gas constant (8.31446261815324 J⋅K−1⋅mol−1)
T= temperature in Kelvin

Brenda Silva 1B
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Re: PV=nRT

Postby Brenda Silva 1B » Fri Jan 15, 2021 5:55 pm

P=pressure, V=volume, n=number of moles, R= gas constant, and T= temperature

chinmayeec 2H
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Re: PV=nRT

Postby chinmayeec 2H » Fri Jan 15, 2021 6:53 pm

P= pressure
V= volume (L)
n = moles of gas
R = gas constant
T = temperature (Kelvin)

Shalyn Kelly 3H
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Re: PV=nRT

Postby Shalyn Kelly 3H » Fri Jan 15, 2021 7:38 pm

P=Pressure in atm
V=Volume in Liters
n=number of moles
R=Gas Constant
T=Temperature (always in Kelvin cause of R's units I believe—to convert from Celsius add 273.15)

ShinwooKim_3E
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Re: PV=nRT

Postby ShinwooKim_3E » Sat Jan 16, 2021 1:30 pm

P=pressure
V=volume
n=moles
R=gas constant
T=temperature

Sukhkiran Kaur 3I
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Re: PV=nRT

Postby Sukhkiran Kaur 3I » Sat Jan 16, 2021 2:32 pm

P= pressure, V=volume, n=moles, R= Rydeberg's gas constant, T=temperature

Jamie2002
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Re: PV=nRT

Postby Jamie2002 » Sun Jan 17, 2021 11:01 pm

P = pressure
V = volume
n = number of mols
R = gas constant
T = temperature

Lorena_Morales_1K
Posts: 39
Joined: Wed Sep 30, 2020 10:11 pm

Re: PV=nRT

Postby Lorena_Morales_1K » Sun Jan 17, 2021 11:35 pm

P=Pressure V=Volume n= #moles
R= gas constant
T= temp

Caelin Brenninkmeijer 1G
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Re: PV=nRT

Postby Caelin Brenninkmeijer 1G » Sun Jan 17, 2021 11:44 pm

For PV=nRT,
P stands for pressure
V for volume
n for amount of moles
R for the gas constant, equaling 8.314 J/mol·K
T for temperature

vuongnaomi1L
Posts: 97
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Re: PV=nRT

Postby vuongnaomi1L » Sun Jan 17, 2021 11:45 pm

P is for Pressure, V is for Volume in Liters, n is for number of moles, R is for gas constant, and T is for Temperature in Kelvin

Sam Wentzel 1F 14B
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Re: PV=nRT

Postby Sam Wentzel 1F 14B » Sun Jan 17, 2021 11:47 pm

P = Pressure, usually given in Bars / atm
V = Volume, in Liters
n = number of mols
R = The gas constant, equal to 8.3145 J mol^-1 K^-1
T = Temperature in Kelvin

Lauren Strickland 1B
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Re: PV=nRT

Postby Lauren Strickland 1B » Sun Jan 17, 2021 11:50 pm

P= pressure
V= volume
n= number of moles
R= gas constant
T= temperature

Susan Chamling 1F
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Re: PV=nRT

Postby Susan Chamling 1F » Mon Jan 18, 2021 1:42 am

P = Pressure, typically in atm or bars
V = Volume, Liters
n = # of moles
R = gas constant (which I believe is provided on the equations sheet)
T = temperature, Kelvin

Samantha Lee 1A
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Re: PV=nRT

Postby Samantha Lee 1A » Tue Jan 19, 2021 9:30 am

P: pressure (units: atm)
V: volume (units: Liters)
n: moles (unit: mol)
R: constant (should match the other units in the equation) --> value = 8.314
T: temperature (units: Kelvin)

*It is very important to make sure you plug in the correct units into each variable in the equation. Pressure, volume, and temperature are the most missed variables because there is a higher chance that the value given in the problem will have different units.

Anna Yakura 2F
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Re: PV=nRT

Postby Anna Yakura 2F » Tue Jan 19, 2021 10:07 am

Does anybody know when exactly we need to use this equation? I haven't encountered it in any of the textbook problems.

Scot Widjaja Dis 1J
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Re: PV=nRT

Postby Scot Widjaja Dis 1J » Sun Jan 24, 2021 1:16 am

P = pressure
V = volume
n = # of moles
R = gas constant
T = temperature

Edwin Liang 1I
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Re: PV=nRT

Postby Edwin Liang 1I » Sun Jan 24, 2021 2:51 pm

P stands for Pressure, V stands for Volume, n stands for number of moles, R stands for gas constant, T stands for temperature.


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