Question

For an equilibrium $H_{2}O\left(s\right)\rightleftharpoons H_{2}O\left(l\right)$, which of the following statements is true?

• A. The pressure changes do not affect the equilibrium
• B. More of ice melts if pressure on the system is increased
• C. More of liquid freezes if pressure on the system is increased
• D. The pressure changes may increase or decrease the degree of advancement of the reaction depending upon the temperature of the system

Answer 1

The correct option is B

More of ice melts if pressure on the system is increased

Since the reaction $H_{2}O\left(s\right)\rightleftharpoons H_{2}O\left(1\right)$ involves $\Delta V$ = negative, increasing pressure shifts the reaction to right side.