Find the mass of glycerin if, when heated from 10 ° C to 15 ° C, it absorbed 12 kJ of heat?

Initial data: t1 (initial temperature of glycerin) = 10 ºС; t2 (final temperature of glycerin) = 15 ºС; Q (the amount of heat that glycerin absorbed when heated) = 12 kJ = 12 * 10 ^ 3 J.

Constants: C (specific heat capacity of glycerin) = 2350 J / (kg * K).

The mass of glycerin can be expressed from the following formula:

Q = C * m * (t2 – t1) and m = Q / (C * (t2 – t1)).

Let’s perform the calculation:

m = 12 * 10 ^ 3 / (2350 * (15 – 10)) = 1.02 kg.

Answer: The mass of glycerin is 1.02 kg.