IIT JEE Main 2017 Physics Question 10 SetA


IIT JEE Main 2017 Physics Question 10 SetA: 

IIT JEE Main 2017 Physics Question 10 SetA states if Cp and Cv are specific heats at constant pressure and constant volume respectively. It is observed that Cp – Cv = a for hydrogen gas and Cp – Cv = b for nitrogen gas. The correct relation between a and b is :

(1) a= (1/14)b
(2) a=b
(3) a = 14b
(4) a= 28b

Solution

According to the problem:
Let molar heat capacity at constant pressure = Xp
and molar heat capacity at constant volume = Xv
Xp – Xv = R
MCp – MCv = R
Cp – Cv = R/M
For hydrogen; a = R/2
For N2 ; b = R/28
a/b = 14
a = 14b

Answer to IIT JEE Main 2017 Physics Question 10 SetA

Correct answer to given problem No 10 of IIT JEE Main Physics paper of 2017 SetA is option number (3) that the correct relation between a and b is a = 14b.


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