A reaction has Delta H deg = +30.0 kJ mol^-1 and Delta S deg = +100 J mol^-1K^-1, both independent of temperature (R = 8.314 J mol^-1K^-1). Select all correct statements.

Delta G deg = +5.0 kJ mol^-1 at 350 K

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3td220

A reaction has $Δ H^{\circ} = + 30.0 kJ mo l^{- 1}$ and $Δ S^{\circ} = + 100 J mo l^{- 1} K^{- 1}$ , both independent of temperature ( $R = 8.314 J mo l^{- 1} K^{- 1}$ ). Select all correct statements.

K = 1

when

Δ G^{\circ} = 0

, i.e.

T = 30000/100 = 300 K

. At

350 K

Δ G^{\circ} = 30000 - 35000 = - 5000 J

, not

+ 5.0 kJ

, and

K = exp (5000/ (8.314 \times 350)) = 5.57

. At

250 K

Δ G^{\circ} = + 5000 J

and

K = exp (- 5000/ (8.314 \times 250)) = 0.0902