Question

If the ratio of densities of two substances is 5 : 6 and that of the specific heats is 3 : 5. Then the ratio between heat capacities per unit volume is

• A. 1 : 1
• B. 2 : 1
• C. 1 : 2
• D. 1 : 3

Answer 1

The correct option is C 1 : 2

$\frac{Heatcapacity}{volume}$ = c = $\times \frac{m}{v}$ = c $\times \rho$
Desired ratio = $\frac{c_1{\rho }_1}{c_2{\rho }_2}$ = $\frac{3}{5}\times \frac{5}{6}$ = 1:2