Question

Under which conditions of temperature and pressure does carbon dioxide gas behave most like an ideal gas?
(1) low temperature and low pressure
(2) low temperature and high pressure
(3) high temperature and low pressure
(4) high temperature and high pressure

Answer 1

30 high temp low pressure...at high temperature, the kinetic energy of the gas molecules increases and they move farther from each other and low pressure ensures low inter-molecular interactions among the molecules. 

Answer 2

Answer: Option (3) is the correct answer.

Explanation:

A condition where a gas if held at high temperature and low pressure then it will behave like an ideal gas.

This is because at high temperature gases will have high kinetic energy. Therefore, they will be in rapid motion and forces of attraction between them will be minimum.

Also, at low pressure gases will not come closer to each other and thus molecules of gas will move freely. Hence, the gas will behave like an ideal gas.

Thus, we can conclude that under conditions of high temperature and low pressure carbon dioxide gas will behave most like an ideal gas.