Chemistry

Problem

For the equilibrium

2\,\text{SO}_2(g)+\text{O}_2(g)\;\rightleftharpoons\;2\,\text{SO}_3(g)

at 700 K, which statement correctly describes how

K_p

compares with

K_c

? a)

K_p

equals

K_c

because both constants are measured at the same temperature. b)

K_p

is greater than

K_c

because the total number of moles of gas decreases. c)

K_p

is less than

K_c

because the total number of moles of gas decreases. d) The relationship between

K_p

and

K_c

cannot be determined without additional enthalpy information.