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When the volume of an "ideal gas" increases AND the amount (number of moles*) of gas remains constant, the temperature of the gas will decrease.
One relevant assumption for an "ideal gas" is that it is "dry" - no water vapor (humidity) in the sample
One relevant equation is the Ideal Gas Law P*V = n*R*T
When P = pressure in atmospheres
V = volume in liters
n = amount of the Ideal Gas, in moles
R = the ideal, or universal, gas constant = 0.08206 L*atm / mol * K
which is read as "liter-atmospheres per mole-Kelvin"
T = the absolute temperature in K, "Kelvins"
*A "mole" is 6.022×1023 atoms or molecules of a substance.
This is known as "Avogadro's Number"
What else can I help you with?
What happens to the density of a given substance if you increase the amount of the substance that you have?
Nothing happens if the volume is also allowed to increase.
Does limestone become sandstone when heated?
No. Limestone changes to Marble when it undergoes intense heat and pressure.
When electricity pass through the bulb what happens to the filament?
It gets heated up and glows spreading the light
What happens when gas particles heats up and the temperature rises?
They will attempt to move apart. The effect of this on the gas contained therein depends on how rigid your container is. If you have a real flexible container like a balloon, the gas will increase in volume. If it's a rigid container like a gas cylinder, the pressure will go up.
What happens to the air when the air pressure differences are small?
When pressure differences are small you get light winds.
What happens to a substance or object when it is heated?
It expands.
What happens to the pressure of gas when it is heated at a constant heat?
The pressure is higher.
When a substance is heated what happens to interparticle distances?
Usually they will increase.
When solid is heated what happens to the pressure?
it goes down
When a solid is heated what happens to the pressure?
it goes down
What happens when gas is heated?
it expands and/or its pressure rises, depending on conditions.
What happens to pressure in a metal spray when heated up?
It heats up
What happens to a solid when is heated?
A substance in the solid phase will typically expand when heated. Most substances when heated sufficiently will melt into a liquid, assuming that they do not combust or sublimate.
What happens at a substance's boiling point?
Its vapor pressure equals atmospheric pressure.
What happens to a heated bone when pressure is applied gently in a lab experiment?
It is brittle
When a substance is heated what happens to kinetic energy of particles?
When a substance is heated, the kinetic energy of its particles increases. This leads to the particles moving faster and colliding more frequently with each other and the container they are in.
What happens to the speed of gas when heated?
The speed of the gas particles will increase as they are heated. That is why the pressure in a container increases. The particles are hitting the walls of the container with more force as they are heated.
