Chemical Thermodynamics Question 36

Question: The standard entropies of CO2(g),,C(s) and O2(g) are 213.5, 5.690 and 205,JK1 respectively. The standard entropy of formation of CO2(g) is [CPMT 2001]

Options:

A) 1.86,JK1

B) 1.96,JK1

C) 2.81,JK1

D) 2.86,JK1

Show Answer

Answer:

Correct Answer: C

Solution:

Formation of CO2 is, C(s)+O2(g)CO2(g)

ΔSo=213.55.690205=2.81JK1 .



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