Hello,
When temperature and volume is known then the change in entropy can be given by
S2-S1=M(cvln(T2/T1)-Rln(V2/V1))
ln(1)=0
Molecular weight of hydrogen=2.016
mass of hydrogen for 5 moles= molecular weight* number of moles
= 2.016*5
= 10.08
Therefore the change in entropy S2-S1= 10.08* 12.6*ln(60/30)
=88
Question : Refrigerators keep food unspoiled because
Option 1: at its low temperature bacteria and moulds are inactive
Option 2: at its low temperature, the germs are killed
Option 3: at its low temperature, the germs are frozen
Option 4: it sterilizes the food
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