Why does pressure increase when temperature does?

Answer 1

This phenomenon is covered under Charles' Law. Basically, if a gas is contained in a fixed volume, as it IS a gas, there's a fair amout of movement of the gas moelcules. If you reduce the volume, molecules have less room to travel, and so they travel faster (conservation of energy). This speed-up of molecular motion is what heat is.

Answer 2

The pressure is affected by an increase in temperature, because with the temperature increases the particles gain more kinetic energy, therefore the particles begin to move faster. This results in the particles hitting one another, and the sides of its container more often. When this occurs, the pressure begins to increase because the particles are moving much faster.

Answer 3

The relationship between pressure and temperature is directly proportional. An increase in temperature leads to pressure increasing too due to the faster movement of gas particles inside a container.

Answer 4

as temperature increases matter moves quicker and that causes the pressure

to increase

Another Answer

When a molecule absorbs heat, the absorption of an infrared wave causes some of the electrons to increase their distance from the nucleus. This stored energy appears as a swelling of the molecular spheroid. Even though the swelling of any individual molecule is minuscule, the accumulated swelling across the absolute number of molecules in the container increases the pressure on the walls of the container appreciably. This assumes a sealed container with a pressure sensor integrated into the container wall.

When talking about gasses, please refer to the Ideal gas equation. PV=nRT, P is pressure, V is volume, n is number of moles, R is ideal gas constant, T is temperature

I didn't know about the "Ideal Gas Equation", thanks. Wouldn't know how to implement it now that I do - lol. Just explaining things the way I perceive them.

Answer 5

By the equation- PV=nRT we get,

only for gases !

Pressure is directly proportional to the temperature.

This implies that as pressure increases, temperature also increases

and as pressure decreases, temperature also decreases

Answer 6

because most material tends to expand when it heats up, so the expansion will increase the pressure of the closed container where you put the material into.