Question

When pressure is applied to the equilibrium system ice $\rightleftharpoons$ water. Which of the following phenomenon will happen ?

• A. More ice will be formed
• B. Water will evaporate
• C. More water will be formed
• D. Equilibrium will not be formed

Answer 1

Answer: (C)

According to Le-Chatelier's principle. If a system in equilibrium is subjected to a change of temperature, pressure or concentration, the equilibrium is disturbed and shifts in the direction in which the effect of change is annuled.
So for the equilibrium
$\underset{\text{greater volume}}{\mathrm{Ice}}\rightleftharpoons \underset{\text{lesser volume}}{\mathrm{Water}}$
on increasing pressure, the melting point of ice is decreased i.e: more ice will melt and more water will be formed.