Does heat and light occupy space and has mass?

Answer 1

No, heat is energy contained in the disorganized motion of molecules.

Take a gas for example. Molecules are moving around randomly, independent of any bulk motion. Temperature is a measure of average kinetic energy of the molecules. If heat is added the temperature goes up, so the average kinetic energy goes up. There's no separate thing that is heat.

Answer 2

Heat energy is measured in calories, or it can be in BTU. (1 BTU = 252 calories)

1 calorie is the heat required to raise 1 gram of water by 1 deg celsius

1 BTU is the heat required to raise 1 lb of water by 1 deg Fahrenheit.

If you are using another fluid or substance, you need to know its specific heat capacity, that is its heat capacity compared with water, then you can adapt the calculation of total heat accordingly. If dealing with a fluid which boils, or a solid which melts, you also need to include the latent heat of the phase change in the total, this will be expressed as so many calories/gram or BTU/lb for that substance. Heat is absorbed in melting or boiling, and given out in condensing or freezing.

Answer 3

Heat and light are both forms of energy, so yes. If you divide the energy by the speed of light in a vacuum squared (all in the appropriate units), you will obtain the value for the mass-equivalent of that energy.

Answer 4

All objects have mass. The Sun has a mass of about 1.9891×1030 kg which is about 333,000 times more than the Earth.

Answer 5

Heat is a kind of energy, and energy has an associated mass, so yes. But the mass (and weight) for a given amount of heat is very small.

Answer 6

Yes.

Seeing as air is composed of gaseous molecules, air has mass regardless of its temperature.

Answer 7

They take up some space in the air. It is a very little amount since their masses are so little.

Answer 8

No. they're both aspects of pure energy. Without "rest mass".

Answer 9

no it does not

Answer 10

its less dense than cool air.