Question

The figure below shows the variation of specific heat capacity (C) of a solid as a function of temperature (T). The temperature is increased continuously form 0 to 500K at a constant rate. Ignoring any volume change, the following statement (s) is (are) correct to a reasonable approximation.

A. the rate at which heat is absorbed in the range 0-100K varies linearly with temperature T.
B. heat absorbed in increasing the temperature from 0-100K is less than the heat required for increasing the temperature from 400-500K.
C. there is no change in the rate of heat absorption in range 400-500K.
D. the rate of heat absorption increases in the range 200-300K.

Answer 1

Correct Answer - A::B::C::D
Option `(a)` is correct because the graph between `(0-100K)` appears to be a straigh line upto a reasonable approximation.
Option `(b)` is correct because area under the curve in the temperature range `(0-100K.)`
Option (c) is correct because the graph of `C` versus `T` is constant in the temperature range `(400-500K)`
Option `(d)` is correct because in the temperature range `(200-300K)` specific heat capacity increases with temperature.