Question

Which of the following statement is false:

• A. $△Sfor{N}_2\left(g\right)\to 2N\left(g\right)$ is negative
  
• B. $△G_{system}$ is always zero for a reversible process in a closed system
  
• C. $△G^o$ for an ideal gas is a function of temperature and pressure
  
• D. Entropy of a isolated system is always maximized at equilibrium

Answer 1

The correct option is C $△G^o$ for an ideal gas is a function of temperature and pressure


As no. of moles of gas increasing, so entropy would increase.
Hence, $△S>0$


As $\Delta G$ is 0 only at equilibrium.

As we know at equilibrium $\Delta G=0$ so,
$△G^o=-RTlnK$
Clearly, $\Delta G$ is only function of Temperature


From Principle of maximum entropy which states that,
The entropy of an isolated system (closed system with fixed internal energy) is maximum at equilibrium.