Question

For the reaction,`X_(2)O_(4)(l) rarr2XO_(2)(g) " "DeltaU=2.1` kcal , `DeltaS=20 cal K^(-1)` at 300 K Hence, `DeltaG` is
A. 9.3 kcal
B. `-9.3` kcal
C. 2.7 kcal
D. `-2.7` kcal

Answer 1

Correct Answer - D
`DeltaH=DeltaU+DeltangRT=3.300 kcal`
`DeltaG=DeltaH-TDeltaS=-2.700 kcal`