A) \[{{N}_{2}}(g,273K)\to {{N}_{2}}(g,300K)\]
B) \[{{N}_{2}}(g,1atm)\to {{N}_{2}}(g,5atm)\]
C) \[C(diamond)\to C(graphite)\]
D) \[{{H}_{2}}(g)\to 2H(g)\]
Correct Answer: B
Solution :
A. When we increase the temperature of a gas then randomness is increased due to kinetic energy gained by molecules. So, \[\Delta S>0\] B. When pressure increases then molecules of gas will come closer and intermolecular distance decreases so entropy will also decrease. and\[\Delta S<0\] C. When Diamond is converted into graphite when it is heated to\[1500{{\,}^{o}}C\] and entropy is increased so\[\Delta S>0\] D. \[{{H}_{2}}\]molecule is converted into atoms, So entropy will increase. So \[\Delta S>0\]
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