A gaseous reaction has K = 1.0 x 10^-2 at 298 K, so Delta G deg = +11.4 kJ mol^-1 (take R = 8.314 J mol^-1K^-1). Select all correct statements.

The reaction is non-spontaneous when all species are at standard state

A mixture with Q = 1.0 x 10^-3 will react in the forward direction

The reaction is non-spontaneous when all species are at standard state

A mixture with Q = 1.0 x 10^-3 will react in the forward direction

JEE Main levelOne or more correct optionsDifficulty 2 of 3td198

A gaseous reaction has $K = 1.0 \times 1 0^{- 2}$ at $298 K$ , so $Δ G^{\circ} = + 11.4 kJ mo l^{- 1}$ (take $R = 8.314 J mo l^{- 1} K^{- 1}$ ). Select all correct statements.

At standard state

Q = 1

and

Δ G = Δ G^{\circ} > 0

, so the forward reaction is not spontaneous. For

Q = 1 0^{- 3}

Δ G = 11400 + 8.314 \times 298 \times ln 1 0^{- 3} = - 5714 J mo l^{- 1} < 0

, so the reaction goes forward.

Δ G^{\circ} = - RT ln K

is fixed (

\neq = 0

here); only

Δ G

is zero at equilibrium.