JEE Advanced 2014 Paper 1

Section: Physics

Question : 13 of 60

Marks: +1, -0

A thermodynamic system is taken from an initial state i with internal energy Ui=100J to the final state f along two different paths iaf and ibf,as schematically shown in the figure. The work done by the system along the paths af,ib and bf are Waf=200J,Wib=50J and Wbf=100J respectively. The heat supplied to the system along the path iaf, ib and bf are Q‌iaf,Q‌ib and Qbf respectively. If the internal energy of the system in the state b is Ub=200J and Qiaf=500J,the ratio

Qbf

Qib

[JEE Adv 2014 P1]

Your Answer:

Validate

Process	W(in Joule)	ΔU(in Joule)	Q(in Joule)
ia		0
af		200
Net	300	200	500

Process	W(in Joule)	ΔU(in Joule)	Q(in Joule)
ib	100	50	150
bf	200	100	300
Net	300	150	450

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