Question

For the equilibrium reaction, $H_{2}O\left(l\right)\rightleftharpoons H_{2}O\left(g\right),$ what happens, if pressure is applied :

• A. More water evaporates
• B. The boiling point of water is increased
• C. No effect on boiling point
• D. None of the above

Answer 1

The correct option is B The boiling point of water is increased

The equilibrium reaction is $H_{2}O\left(l\right)\rightleftharpoons H_{2}O\left(g\right),$ when pressure is applied, the equilibrium will shift to left as the value of $\Delta n$ is positive. Hence, for boiling to occur more temperature is required. So, it will increase the boiling point.