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A heat engine absorbs heat Q1 at temperature T1 and heat Q2 at temperature T2. Work done by the engine is J (Q1 + Q2). This data :
A
violates 1st law of thermodynamics
B
violates 1st law of thermodynamics if Q1 is +ve
C
violates 1st law of thermodynamics if Q1 is -ve
D
does not violates 1st law of thermodynamics
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