Question

For the reaction , A3O6 ----> 3AO2 delta g= -3kcal and delta s = 30 cal/K at 500K . The value of delta U = _____ kcal. (R=2 cal/kmol)​

Answer 1

Answer:

For the reaction 

A(g)+B(g)→C(g)

T=300K;ΔE=ΔU−3.0 kcal; ΔS=−10.0 cal/K 

ΔG=ΔH−TΔS

ΔH=ΔU+ΔngRT

ΔH=−3000+(1−2)×1.987×300

ΔH=−3594 cal

thus ΔG=−3594−300×(−10)

ΔG=−594 cal