Texas A&M University (TAMU) CHEM107 General Chemistry for Engineering Students Exam 2 Practice

When the temperature of a gas increases while the volume remains constant, the pressure of the gas also increases. This relationship is described by Gay-Lussac's Law, which states that the pressure of a gas is directly proportional to its absolute temperature (measured in Kelvin) when the volume is held constant.

As the temperature rises, the kinetic energy of the gas molecules increases, causing them to move more rapidly. When these fast-moving molecules collide with the walls of their container, they exert a greater force per unit area, which is perceived as an increase in pressure.

Thus, maintaining a fixed volume while raising the temperature results in a higher pressure, aligning with the principles of gas behavior in thermodynamics.