__ the temperature of a substance, the __ its vapor pressure.

As the temperature of a substance increases, its vapor pressure also increases. This relationship is grounded in the principles of thermodynamics and the kinetic molecular theory.

When temperature rises, the kinetic energy of the molecules in the substance also increases. As molecules gain energy, they move more vigorously and are more likely to escape from the liquid phase into the gas phase. This process increases the number of molecules in the vapor state above the liquid, thus leading to a higher vapor pressure.

Understanding this concept is essential in various applications, including cooking, chemical processing, and meteorology, where vapor pressure plays a significant role in predicting behaviors of substances under varying temperature conditions. This relationship also highlights the importance of temperature control in preventing excessive vapor buildup, which can pose safety hazards.