Question

Identity the most favourable conditions for the melting of ice.

• A. high temperature, low pressure
• B. low temperature, low pressure
• C. low temperature, high pressure
• D. high temperature, high pressure

Answer 1

The correct option is D high temperature, high pressure

Since ice has lower density than water, melting of ice involves reduction in volume. Increase in pressure favours the process. The process is endothermic and hence high temperature favours the process.
This is one the prime reasons why ice/snow don't melt so easily at high altitude as despite having high temperature as the pressure is low at high altitude.