11th Class Physics Thermodynamical Processes Question Bank Thermodynamics Conceptual Problems

  • question_answer
    Does the mass of a body change when it is heated or cooled?

    Answer:

                    When a body is heated or cooled, it absorbs or releases energy and so its mass increases or decreases in accordance with the Einstein's relation: \[E=m{{c}^{2}}\]. As the speed of light c is very large, so the change in mass is extremely small.


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