What Is the Correct Form of the Equilibrium Constant for the Reaction

question 30

Multiple Choice

What is the correct form of the equilibrium constant for the reaction of hydrogen and oxygen to form water? The equation is:
2H?(g) + O?(g) ? H?O(g)

• A) Kc = \(\frac { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { \left[ \mathrm { O } _ { 2 } \right] \left[ \mathrm { H } _ { 2 } \right] ^ { 2 } }\)
• B) Kc = \(\frac { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { \left[ \mathrm { O } _ { 2 } \right] \left[ \mathrm { H } _ { 2 } \right] }\)
• C) Kc = \(\frac { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { \left[ \mathrm { O } _ { 2 } \right] \left[ \mathrm { H } _ { 2 } ^ { 2 } \right] }\)
• D) Kc = \(\frac { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] } { \left[ \mathrm { O } _ { 2 } \right] \left[ 2 \mathrm { H } _ { 2 } \right] }\)
• E) Kc = \(\frac { \left[ \mathrm { H } _ { 2 } \mathrm { O } \right] ^ { 2 } } { \left[ \mathrm { O } _ { 2 } \right] \left[ \mathrm { H } _ { 2 } ^ { 2 } \right] }\)

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Definitions:

Population Mean

The average of a set of characteristics, quantities, or values for all individuals or items in a defined population.

Population Variance

A measure of how data points in a population are spread out from the mean.

T Distribution

A type of probability distribution that is symmetrical and bell-shaped like the normal distribution but has heavier tails, used especially for small sample sizes.

Degrees Of Freedom

The total count of values that can change in the ultimate calculation of a statistical figure.