The m.p. of most of the solid substances increase with an increase of pressure . However ice melts at a temperature lower than its usual melting point when pressure is increased . This is because

Question

The m.p. of most of the solid substances increase with an increase of pressure . However ice melts at a temperature lower than its usual melting point when pressure is increased . This is because (A) ice is less denser than H2O (B) pressure generates heat (C) the chemical bonds break under pressure (D) ice is not a true solid

Tardigrade Admin · Accepted Answer

ice occupy more volume than liquid water (Ice leftharpoons water). Increase of pressure favours forward reaction ( Le-Chatelier’s principle).

Q. The m.p. of most of the solid substances increase with an increase of pressure . However ice melts at a temperature lower than its usual melting point when pressure is increased . This is because

ice is less denser than $H_{2} O$

pressure generates heat

the chemical bonds break under pressure

ice is not a true solid

ice occupy more volume than liquid water (Ice $⇌$ water). Increase of pressure favours forward reaction ( Le-Chatelier’s principle).