Question

There is more deviation in the behaviour of a gas from the ideal gas equation $PV=nRT$

• A. At high temperature and low pressure
• B. At low temperature and high pressure
• C. At high temperature and high pressure
• D. At low temperature and low pressure

Answer 1

Answer: (B)

At low temperature and high pressure

There is more deviation in the behaviour of a gas from the ideal gas equation $PV=nRT$ at low temperature and high pressure.
At low temperature, both $P$ and $V$ are small. Hence, both pressure and volume corrections are appreciable. Due to this, the deviations are more pronounced.
At high pressure, the volume is quite small and the term $b$ cannot be neglected in comparison to $V$.