Mass per meter square of living rrom= 50 kg and total area =200
SO, total mass to be cool= "50\\times200=10000 kg"
for ambient temperature we can say that change in internal energy= 0
or minimum work done by applying first law of thermodynamics we can say that
"dW= 10000\\times c(310-294)"
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Thanks so much sir but why is the answer in term of c