Does heating matter affect the mass of an object?

Answer 1

Temperature has no effect upon mass.

If you boil a liquid, some of it will evaporate off. This may have the effect of lowering the mass of what remains. But the mass should remain constant. What would change, however, is the volume and density, in accordance with the famous equation: m=vd.

Mass is the product of volume and density.

Answer 2

yes it effects as the molecules will move apart from each other hence volume will increase and the mass will get spread if it is a liquid then some of it on raching the ignition temperature will get evaporated so the mass will derease in case of solids it will not change

Answer 3

Whether or not heating matter affects the mass of an object depends on how hot you make the object. Normal heating of matter has little effect on the mass of an object. However, if you heat a substance like hydrogen to the point where you strip off the electron, the electron and the proton have more mass than the hydrogen atom. Then when the proton and electron come together, they will give off heat. You can calculate the amount by looking up the mass of the electron and the proton and subtracting the weight of a hydrogen atom. The formula is e = Mc2