Question

A reaction attains equilibrium state under standard conditions, then:
A. equilibrium constant `K=1`
B. equilibrium constant `K=0`
C. `DeltaG^(@)=0` and `DeltaH^(@)=TDeltaS^(@)`
D. `DeltaG=0` and `DeltaH=TDeltaS`

Answer 1

Correct Answer - A::C::D
`DeltaG^(@)=0` at equilibrium under standard state, also at equilibrium `DeltaG^(@)=0`
`:. DeltaH^(@)-TDeltaS^(@)=0`
Also, `DeltaG^(@)=2.303 RT ln Kimplies K=1`