Determine the specific heat of the material from which the sample weighing 2 kg is made, if 5 kJ of heat was

Determine the specific heat of the material from which the sample weighing 2 kg is made, if 5 kJ of heat was spent on heating it from 10 to 15 * C. Losses for heat exchange with the environment should be neglected. What material is the sample made of?

Data: m (mass of the sample under consideration) = 2 kg; t0 (initial temperature) = 10 ºС; t (final temperature of the sample) = 15 ºС; Q (heat spent on heating the sample) = 5 kJ (5 * 103 J); we do not take into account losses to the environment.

We express the specific heat of the sample material from the formula: Q = C * m * (t – t0) and C = Q / (m * (t – t0)).

Calculation: C = 5 * 103 / (2 * (15 – 10)) = 500 J / (kg * ºС).

Answer: The sample in question is made of steel, which has a specific heat of 500 J / (kg * ºС).