Question

Which of the following relations is correct ?

• A. DG⁰ = RT ln Keq
• B. [H3O+] = 10Ph
• C. log$\frac { \mathrm { Kw } _ { 2 } } { \mathrm { Kw } _ { 1 } } = \frac { \Delta \mathrm { H } ^ { 0 } } { 2.33 \mathrm { R } } \left( \frac { 1 } { \mathrm {~T} _ { 1 } } - \frac { 1 } { \mathrm {~T} _ { 2 } } \right)$
• D. [OH–] = 10–7, for pure water at all temperatures.

Answer 1

Answer: (C)

log$\frac { \mathrm { Kw } _ { 2 } } { \mathrm { Kw } _ { 1 } } = \frac { \Delta \mathrm { H } ^ { 0 } } { 2.33 \mathrm { R } } \left( \frac { 1 } { \mathrm {~T} _ { 1 } } - \frac { 1 } { \mathrm {~T} _ { 2 } } \right)$

Answer 2

Fact based