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JEE Advanced 2014 Paper 1

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Question : 13

Total: 60

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

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