Question

What is the free energy change, ${}^{\prime }\Delta G^{\prime }$ When 1.0 mole of water at 100${}^0$C and 1atm pressure is converted into steam at 100${}^0$C and 1atm pressure

• A. 540 cal
• B. -9800 cal
• C. 9800 cal
• D. 0 cal

Answer 1

The correct option is D 0 cal

water $\rightleftharpoons$ steam
water is in equilibrium with steam at 1 atm pressure and ${100}^{\circ }$C
for a process at equilibrium
$\Delta G=O$