Mass & Emittance: Does Heat Affect Mass?

[ABHoT]

Is mass reduced by emittance?
If so if you heat an object would its mass reduce quicker?

 

[Calimero]

Is mass reduced by emittance?

Yes.

If so if you heat an object would its mass reduce quicker?

No. It will either reduce slower or increase.

 

[ABHoT]

Thanks for the answer.
I think I'm missing something:

If you heat an object energy emission increases.
Mass is reduced by emmitance.
Heating an object increases its mass.

Am I mis-understanding what mass is?

If all matter/mass gives off radiation/electromagnetic waves and emmitance reduces mass does that mean that all mass in the universe is slowly turning into energy?

 

[Calimero]

Thanks for the answer.
I think I'm missing something:

If you heat an object energy emission increases.
Mass is reduced by emmitance.
Heating an object increases its mass.

Ok, it depends are you referring to the mass before heating, or after. We are talking about thermal emissions. Object will cease to radiate energy when it reaches thermal equilibrium with its surroundings. So, if your question was "is energy content contributing to the mass content?", answer is yes. But if you omit radioactive processes, which require special conditions (temperature, pressure, or high atomic number for spontaneous decay), object can radiate only its 'energy content' (thermal energy, chemical bonds energy).

 

[sardar]

I can say that heat does not directly affect mass. Mass is a fundamental property of matter that remains constant regardless of the temperature or amount of heat applied to an object. However, the concept of emittance is more complex and can indirectly affect an object's mass.

Emittance refers to the rate at which an object emits thermal radiation, which is a form of energy. When an object is heated, it may emit thermal radiation at a higher rate, but this does not change the object's mass. However, if this emitted energy is not replaced by an equal amount of energy from the surroundings, the object's overall mass can decrease due to the loss of energy.

For example, imagine a piece of ice in a warm room. As the ice absorbs heat from the room, it begins to melt and turn into water. The melted water has the same mass as the ice, but it has lost some of its energy in the form of heat. Therefore, the total mass of the system (ice + room) has not changed, but the mass of the ice alone has decreased due to the emission of thermal energy.

In summary, while heat does not directly affect an object's mass, the process of emittance can indirectly lead to a decrease in mass if the emitted energy is not replaced. However, this decrease in mass is not instantaneous and depends on the rate of emittance and the energy exchange with the surroundings. Therefore, heating an object will not necessarily cause its mass to decrease quicker.