GChem - PV=nRT

[RCT PC CRN]

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So for ideal gas PV=nRT is true and if you have same number of moles of 2 different gas both will have same P and V and thus T. Also PV=constant.

So for 2 real gas if you have same number of moles then PV will still be constant (PV=constant) and thus T but P and V as individual will be different, right? cause for real gas the Eq is (P+something)(V-something)=nRT.

Can someone please confirm my understanding?

I came to think about this by doing Q#105 GChem part of Destroyer. That also makes me think that he should have specified that both gases are "ideal". I guess we have to assume that Ar and He behave like Ideal gas in order for A to be False or else A will be True and the over all answer would have been E (A & C both would have been true), right?

That's again makes me think that if something like this pops up in real DAT, should we just assume that the question is talking about Ideal gas?

 

[UndergradGuy7]

So for ideal gas PV=nRT is true and if you have same number of moles of 2 different gas both will have same P and V and thus T. Also PV=constant.

So for 2 real gas if you have same number of moles then PV will still be constant (PV=constant) and thus T but P and V as individual will be different, right? cause for real gas the Eq is (P+something)(V-something)=nRT.

Can someone please confirm my understanding?

I came to think about this by doing Q#105 GChem part of Destroyer. That also makes me think that he should have specified that both gases are "ideal". I guess we have to assume that Ar and He behave like Ideal gas in order for A to be False or else A will be True and the over all answer would have been E (A & C both would have been true), right?

That's again makes me think that if something like this pops up in real DAT, should we just assume that the question is talking about Ideal gas?

In general chemistry, we usually always assumed you are talking about ideal gases. We never did "real gas" problems. We just mentioned it and showed the formula. Real gas stuff is more for upper level chemistry. So I would assume ideal gas usually, but usually it also says "ideal gas."


And this...
So for ideal gas PV=nRT is true and if you have same number of moles of 2 different gas both will have same P and V and thus T. Also PV=constant.

Look at Avagadro's law. He says that if you have the same number of moles of any gas in a container they will always take up the same volume no matter what gas it is. So if n1=n2 then v1=v2. He also said you have to keep P, T constant. So I guess I agree with your statement. Not sure why you wrote PV=constant. Avagadro's law is stated as n/V = constant.