How does an increase in temperature typically affect gas pressure?

• A. Gas pressure decreases with increased temperature
• B. Gas pressure remains constant with increased temperature
• C. Gas pressure increases with increased temperature
• D. Gas pressure fluctuates randomly with temperature

Answer: (C)

An increase in temperature typically leads to an increase in gas pressure, which can be understood through the ideal gas law, represented as PV = nRT. In this equation, P stands for pressure, V is volume, n is the number of moles of gas, R is the universal gas constant, and T represents temperature in Kelvin.

When the temperature of a gas increases, the kinetic energy of the gas molecules also increases. As molecules move faster due to this added energy, they collide more forcefully and more frequently with the walls of their container. This increased frequency and intensity of molecular collisions manifest as a rise in pressure.

In a closed system where the volume is held constant, the pressure will directly correlate with an increase in temperature; as temperature goes up, so does pressure. Therefore, the correct understanding of the relationship between temperature and gas pressure is that an increase in temperature results in an increase in gas pressure, validating the selection that indicates a direct relationship between these two variables.