PV=nRT

[Andrea_Torres]

What does each letter stand for?

[Charysa Santos 4G]

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

[KarineKim2L]

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

[Samuel Tzeng 1B]

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

[Jesalynne 2F]

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]

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]

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

[san_2F]

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

[EllieSchmidtke_4I]

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

[Rosa Munoz 2E]

Pressure Volume = moles R is a constant T temperature

[WGaines_2E]

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

[Philip]

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

[Leslie Almaraz 4G]

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

[jessicasilverstein1F]

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]

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]

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

[Joshua Swift]

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

[Morgan Gee 3B]

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]

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

[Bella Bursulaya 3G]

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]

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

[Samantha Lee 1A]

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]

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

[Kaili Valenzuela 2B]

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]

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]

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]

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]

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]

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

[Jiapeng Han 1C]

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

[Lily Anne Garcia 1C]

pressure, volume, number of moles, constant, tempurature

[Nina Fukui 2J]

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

[Mingzi Yang 1E]

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]

Thanks everyone! ^

[Maddie Turk Disc 2J]

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

[Matlynn Giles 2E]

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

[Nan_Guan_1L]

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

remember to use SI units!

[305572629]

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

[Hasan Mirza 3F]

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

[Ethan Goode 2H]

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

[Colin Squire 3B]

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

[joshtully]

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]

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

[Ashley Wagner 2A]

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

[Chinmayi Mutyala 3H]

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

[Justin Zhang_1A]

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]

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]

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]

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]

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

[Raashi Chaudhari 3B]

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]

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

[Keeryth Sandhu 1H]

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

[Ariel Guan 1H]

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

[emwoodc]

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

[Adam Bustamante 1I]

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

[Jason Knight - 1F]

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

[Alen Huang 2G]

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

[MariaCassol1L]

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]

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

[chinmayeec 2H]

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

[Shalyn Kelly 3H]

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]

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

[Sukhkiran Kaur 3I]

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

[Jamie2002]

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

[Lorena_Morales_1K]

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

[Caelin Brenninkmeijer 1G]

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]

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]

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]

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

[Susan Chamling 1F]

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]

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]

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]

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

[Edwin Liang 1I]

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