Pv=nRT  [ENDORSED]


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Cecilia Jardon 1I
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Pv=nRT

Postby Cecilia Jardon 1I » Thu Jan 10, 2019 8:44 pm

I just wanted to make sure that the units for temperature in this equation is supposed to be in Kelvin?

Aleeque Marselian 1A
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Re: Pv=nRT

Postby Aleeque Marselian 1A » Thu Jan 10, 2019 8:49 pm

Yes, based on Dr. Lavelle's slides in lecture, the temperature in the ideal gas law is measured in Kelvin.

Ashley Kenney 1E
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Re: Pv=nRT  [ENDORSED]

Postby Ashley Kenney 1E » Thu Jan 10, 2019 8:50 pm

Yes, you're right, ideal gas law uses temperature in Kelvin

abbydouglas1K
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Re: Pv=nRT

Postby abbydouglas1K » Fri Jan 11, 2019 9:29 am

Yes the temperature should be in Kelvin but you must make sure that the temperature stays the same throughout the reaction or the equilibrium constant will be correct.

deniise_garciia
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Re: Pv=nRT

Postby deniise_garciia » Fri Jan 11, 2019 9:59 am

if in any case it is given in Celsius you only have to add 273.15 to the given temp. and it'll give you the Kelvin temp.

Jasmine Chow 1F
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Re: Pv=nRT

Postby Jasmine Chow 1F » Fri Jan 11, 2019 7:36 pm

yes it is in Kelvin. If you need to convert to K from C add 273.

Henry Dudley 1G
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Re: Pv=nRT

Postby Henry Dudley 1G » Sat Jan 12, 2019 2:45 pm

What is the value of R?

Kevin Tang 4L
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Re: Pv=nRT

Postby Kevin Tang 4L » Sat Jan 12, 2019 3:39 pm

Henry Dudley 1G wrote:What is the value of R?


The value of R is the gas constant, which I'm guessing will be a given value.

Lauren Huang 1H
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Re: Pv=nRT

Postby Lauren Huang 1H » Sat Jan 12, 2019 5:13 pm

Since there are multiple values of R, make sure the units of the R you are using cancel out/correspond with the other units in the equation.

BenJohnson1H
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Re: Pv=nRT

Postby BenJohnson1H » Sat Jan 12, 2019 6:51 pm

What exactly does each letter represent in PV=nRT? Specifically n, is that the amount of something in moles?

davidryan3f
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Re: Pv=nRT

Postby davidryan3f » Sun Jan 13, 2019 5:36 pm

Henry Dudley 1G wrote:What is the value of R?

R= 0.08206 L atm/mol K. This is given to us on tests I believe.

Emily Kennedy 4L
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Re: Pv=nRT

Postby Emily Kennedy 4L » Sun Jan 13, 2019 5:40 pm

we only use this equation to convert from partial pressure to concentration and vice versa rt?

Rhea Churi 4K
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Re: Pv=nRT

Postby Rhea Churi 4K » Sun Jan 13, 2019 5:59 pm

Emily Kennedy 4L wrote:we only use this equation to convert from partial pressure to concentration and vice versa rt?

Yes, you would use P/RT=Concentration


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