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The figure below shows the variation of ...

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 from 0 to 500 K at a constant rate. Ignoring any volume change, the following statement(s) is (are) correct to 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 the range `400-500K`

D

The rate of heat absorption increases in the range `200-300K`

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
(A) From `0"to"100`k the major part of graph lies in linear region and very small part in non-linear region, therefore to a reasonable approximation between `0 K - 100K`, graph of `C` vs `T`is linear.

(B) by comparing area under curve

(C) from `400K "to" 500K` , Graph of `C` vs `T` become asymptotic hence rate of heat absorption become constant
(D) The rate of heat absorption increases as `C` is increasing.
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