Question

The amount of heat energy required to increase the temperature of X g of water by `10^(@)C` is found to be 15 cal. Calculate X.
A. 0.5 g
B. 15 g
C. 1.5 g
D. 7.5 g

Answer 1

Correct Answer - C
The specific heat of water is 1 `cal//g^(@)C`.
`therefore` Heat required for increasing `10^(@)C` temperature of x g water is 10 X cal.
`therefore` 10X = 15
`therefore` X = 1.5 g