Question

Assertion : In change of state from solid to liquid the temperature decreases until the entire amount of the solid substance melts.
Reason : The phenomenon of refreezing is called melting.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (D)

Both the solid and liquid states of the substances coexist in thermal equilibrium during the change of state from solid to liquid. The phenomenon of refreezing is called regelation.