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Engineering Chemistry · Q17

Chemical Thermodynamics

Engineering and GATE · Engineering Chemistry · question 17

Q17

Among the following, the reaction that is accompanied by a decrease in the entropy is

A.
N2(g) + 3H2(g) → 2NH3(g)
Answer
B.
C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O()
C.
PCl5(s) → PCl3() + Cl2(g)
D.
2H2O() → 2H2(g) + O2(g)

Answer: Option A

Solution

Answer: Option A
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