At which temperature and pressure the molar volume of a gas the SMALLEST?

[s3a]

Question:
http://img82.imageshack.us/img82/2492/questionr.jpg

Answer: B

[Russ]

Formua; PV = nRT
The question gives you pressure and temperature and the fact that it's "molar" (1 mol). R is a constant (8.31).
Substitute them in and check the value it gives you.

For a better explanation of PV = nRT refer to Sodapop's tutorial. He explains what each one is and how to manipulate them.