Question

Two bodies $A$ and $B$ are of same mass and same amount of heat is given to both of them. If the temperature of $A$ increases more than that of $B$ because of heat addition, then ___________.

• A. the specific heat capacity of $A$ is more than that of $B$
• B. the specific heat capacity of $A$ is less than that of $B$
• C. both $A$ and $B$ have the same specific heat capacity but $A$ has greater thermal conducitivity
• D. both $A$ and $B$ have the same specific heat capacity but $B$ has greater thermal conductivity

Answer 1

The correct option is B the specific heat capacity of $A$ is less than that of $B$

Heat given $H=mS\Delta T$

For same $H$ and $m$, we get $S\propto \frac{1}{\Delta T}$

Since temperature of A increases more than B, so specific heat capacity of A is less than that of B.