Question

For the reaction ⇌ $2 \mathrm { CO } ( \mathrm { g } )$ , the partial pressure of $\mathrm { CO } _ { 2 }$ and CO are 2.0 and 4.0 atm respectively at equilibrium. The $K _ { p }$ for the reaction is.

• A. 0.5
• B. 4.0
• C. 8.0
• D. 32.0

Answer 1

Answer: (C)

8.0

Answer 2

$\mathrm { K } _ { \mathrm { p } } = \frac { \left[ \mathrm { P } _ { \mathrm { co } } \right] ^ { 2 } } { \left[ \mathrm { P } _ { \mathrm { CO } _ { 2 } } \right] } = \frac { 4 \times 4 } { 2 } = 8$ .