Question

The densities of two materials X and Y are in the ratio 1 : 3. Their specific heats are in the ratio 3 : 1. If we take same volumes of the two substances, the ratio of their thermal capacities will be :

• A. 1 : 1
• B. 1 : 3
• C. 1 : 6
• D. 1 : 9

Answer 1

Answer: (A)

1 : 1

Answer 2

$\frac{C_{1}}{C_{2}}$ = $\frac{P_{1}Vs_{1}}{P_{2}Vs_{2}}$ = $\frac{1}{3} \times \frac{3}{1}$ = 1 : 1