Question

When does a gas deviate the most from its ideal behavior ?

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

Answer 1

The correct option is D At high pressure and low temperature

At high pressure and low temperature, a gas deviates the most from its ideal behaviour.

Under these conditions, the gas molecules are close to each other and they exert significant intermolecular forces on each other.

Also, the volume of gas molecules becomes a significant portion of total volume and cannot be neglected.

Hence, the correct option is D.