Can temperature be affected by volume?

Question

*I know that volume can be affected by temperature, but I was wondering if heat could make something's volume change or not. Please explain!

Answer 1

ceddog and Arasan's answers are correct; but do not confuse temperature with heat.

Temperature is a measure of the average kinetic energy of the particles in a system. Heat is a measure of the amount of thermal energy in a system.  A red hot needle has a much higher temperature than an ice cube; but contains a lot less heat.  Plunge a red hot needle into an ice cube, and it will soon cool to the temperature of the ice, but only a fraction of the ice will melt.  High in the atmosphere, the pressure is very low because the air molecules are further apart; but the molecules are moving very rapidly; hence the temperature can be quite high (around a thousand degrees high above the stratosphere).  But you wouldn't feel very warm; because the air would not contain much heat.

Answer 2

no it cannot!!!!

Answer 3

Absolutely.  The ideal gas law shows the relationship between temperature, volume and a few other factors:

PV = nRT

P = pressure

V = volume

n = moles of gas

R = ideal gas constant

T = temperature

The relationship (PV)/T is also true.  If pressure is held constant, an increase in volume will lead to an increase in temperature.  

Answer 4

Yes;that is what happens in the atmosphere.One of the reasons why temperature decreases with altitude is the expansion of the rising air(volume increase) at higher altitudes.

Over high pressure areas.the cold air sinks and gets compressed(decrease in volume) resulting in warmer air(cold air while descending becomes warmer) near the surfce.So,clouds get dissipated over high pressure areas.