Test Index

WAEC Physics 2015 Paper

Question : 23

Total: 50

Which of the following units is the S.I. unit of heat capacity?

Solution:

Concept:

Heat capacity is the amount of heat energy required to raise the temperature of a body by

1

kelvin.

Explanation:

Heat capacity is given by:

C = \frac{Q}{\Delta T}

where

Q

is heat energy in joules (

J

) and

\Delta T

is temperature change in kelvin (

K

So, the S.I. unit is:

\frac{J}{K} = JK^{-1}

This matches option C.

Answer:

JK^{-1}

Go to Question:

Prev Question

Next Question