What will happen when the temperature of a gas is increased from 20°C to 40°C at constant pressure?
A) The volume of the gas will double.
B) The volume of the gas will decrease by half.
C) The volume of the gas will decrease slightly.
D) The volume of the gas will increase slightly.

Question

Quizplus · Accepted Answer

According to Charles's law, at constant pressure, the volume of a gas is directly proportional to its temperature (in Kelvin). As the temperature increases from 20°C (293 K) to 40°C (313 K), the volume of the gas will also increase slightly. Therefore, the best choice is D.

What Will Happen When the Temperature of a Gas Is