1.

Find out the value of equilibrium constant for the following reaction at 298K, 2NH_(3(g)) +CO_(2(g)) hArr NH_2CONH_(2(aq))+H_2O_((l)) Standard Gibbs energy change, DeltaG_r^0 at the given temperature is "-13.6 kJ mol"^(-1) .

Answer»

Solution :Given : T=298 K
`DeltaG_r^0=-13.6 "kJ mol"^(-1)`
`=-13600 "J mol"^(-1)`
`DeltaG^0=-2.303 RT log K_(eq)`
`log K_(eq)=(-DeltaG^0)/(2.303RT)`
`log K_(eq)=("13.6 kJ mol"^(-1))/(2.303xx8.314xx10^(-3) JK^(-1) mol^(-1)xx298K)`
`logK_(eq)=2.38`
`K_(eq)`=antilog(2.38)
`K_(eq)`=239.88


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