The specific heat capacities of a variety of substances are given below. Based u

Question

The specific heat capacities of a variety of substances are given below. Based upon these values, which of the following statements is true for samples of each material of equal mass: Liquid water absorbs the most heat before its temperature rises significantly More heat must be removed from liquid water to cool down the same amount than for the others. On a hot sunny day it will take a longer time (more heat absorbed) for a granite rock wall to heat up than a wall made of wood On a hot sunny day, a granite rock will heat up less quickly if it has impurities of iron in it than if it has no iron. Two substances are put in contact with one another, at thermal equilibrium . In a coffee cup calorimeter we use two Styrofoam cups to help insulate the calorimeter. Why do we do this?

Explanation / Answer

21) option A

22)

Heat lost by hot body = heat gained by cold body

answer is option E

23) option B

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