Question

Which of the following is an example of the first law of thermodynamics ? (A) The specific heat of an object explains how easily it changes temperature. (B) While melting, an ice cube remains at the same temperature. (C) When a refrigerator is unplugged, everything inside of it returns to room temperature after some time. (D) After falling down the hill, a ball’s kinetic energy plus heat energy equals the initial potential energy.

Answer 1

Answer:

B is the correct answer