Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is (are) (i) Δ G is positive (ii) Δ Ssystem is positive (iii) Δ Ssurroundmgs = 0 (iv) Δ H = 0

Question

Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is (are) (i) Δ G is positive (ii) Δ Ssystem is positive (iii) Δ Ssurroundmgs = 0 (iv) Δ H = 0 (A) (ii) and (iv) only (B) (i) and (iii) only (C) (ii), (iii) and (iv) only (D) all of these

Tardigrade Admin · Accepted Answer

For an ideal solution, (i) Δ G < 0; for mixing (ii) Δ Ssystem > 0; because disorder increases (iii) Δ Ssurr = 0; no heat is exchanged in case of ideal solution. (iv) Δ Hmix = 0

Q. Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is (are)
(i) $Δ G$ is positive
(ii) $Δ S_{sys t e m}$ is positive
(iii) $Δ S_{s u rro u n d m g s = 0}$
(iv) $Δ H = 0$

(ii) and (iv) only

(i) and (iii) only

(ii), (iii) and (iv) only

all of these

For an ideal solution,
(i) $Δ G < 0$ ; for mixing
(ii) $Δ S_{sys t e m} > 0$ ; because disorder increases
(iii) $Δ S_{s u rr} = 0$ ; no heat is exchanged in case of ideal solution.
(iv) $Δ H_{mi x} = 0$

Q. Benzene and naphthalene form an ideal solution at room temperature. For this process, the true statement(s) is (are) (i) ΔG is positive (ii) ΔSsystem​ is positive (iii) ΔSsurroundmgs=0​ (iv) ΔH=0