Home
Class 11
CHEMISTRY
Standard enthalpy and standard entropy c...

Standard enthalpy and standard entropy change for the oxidation of `NH_(3)` at `298K` are `-382.64KJ mol^(-1)` and `145.6Jmol^(-1)` respectively. Standard free energy change for the same reaction at `298K` is

A

`-221.1KJmol^(-1)`

B

`-339.3K.Jmol^(-1)`

C

`-439.3K.Jmol^(-1)`

D

`-523.2K.Jmol^(-)`

Text Solution

Verified by Experts

The correct Answer is:
C

`DeltaG=DeltaH-TDeltaS`
Promotional Banner

Similar Questions

Explore conceptually related problems

Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298 K are -582.64 kJ mol^(-1) and -150.6 J mol^(-1) , respectively. Standard Gibb's energy change for the same reaction at 298 K is

Standard enthalpy and standard entropy changes for the oxidation of ammonia at 298 K are -382.64 kJ mol^(-1) and -145.6 jK^(-1)mol^(-1) respectively. Standard Gibbs energy change for the same reaction at 298 K is

In a fuel celll, methanol is used as a fuel and O_(2) is used as oxidizer. The standard enthalpy of combustion of methanol is -726 kJ mol^(-1) . The standard free energies of formation of CH_(3)OH(I), CO_(2)(g) and H_(2)O(I) are -166.3, -394.4 and -237.1 kJ mol^(-1) respectively. The standard free energy change of the reaction will be

Standard free energy change for an equilibrium is zero, the value of K_(p) is

The standard enthalpy or the decomposition of N_2 O_5 to NO_2 is 58.04 kJ and standard entropy of this reaction is 176.7 J/K. The standard free energy change for this reaction at 25^@ C is_____________.