JEE Advanced | 2013Heat TransferHard
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 from 0 to 500 K at a constant rate. Ignoring any volume change, the following statement(s) is (are) correct to a reasonable approximation :-
Options
A.the rate at which heat is absorbed in the range 0-100 K varies linearly with temperature T.
B.heat absorbed in increasing the temperature from 0-100 K is less than the heat required for increasing the temperature from 400-500 K.
C.there is no change in the rate of heat absorption in the range 400-500 K
D.the rate of heat absorption increases in the range 200-300 K
Solution
(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 - 100 K, graph of C vs T is linear.
(B) by comparing area under curve
(C) from 400 K to 500 K, 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.
(B) by comparing area under curve
(C) from 400 K to 500 K, 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.
Create a free account to view solution
View Solution FreeMore Heat Transfer Questions
A wall is made up of two layers A and B. The thickness of the two layers is the same, but materials are different. The t...If the rate of emission of radiation and the rate of absorption by surface of a body are same then the temperature of bo...The coefficient of thermal conductivity depends upon-...Flash light equipped with a new set of batteries, produces bright light. As the batteries wear out:...Temperature of black body is 3000K when black body colls, then change in wavelength ᐃλ = 9 micron correspondi...