Question

Select all that apply.

Which of the following are true about a block of ice at -10°C as you continue to apply heat.


Its temperature will rise continuously until it completely melts.
Its temperature will rise until reaching 0°C.
Its temperature will not rise above -10°C until it melts.
Its temperature will remain at 0°C until all the ice melts.

Answer 1

These are both true

Its temperature will rise continuously until it completely melts.
Its temperature will rise until reaching 0°C.

Answer 2

The following options are correct

Its temperature will rise until reaching 0°C.

Its temperature will remain at 0°C until all the ice melts.

Step-by-step explanation:

The melting of ice at temperature below 0°C involves

a) heat is required in increasing the temperature of ice from 10°C to 0°C.

b) heat is required in melting of ice.

So the ice will first undergo an increase in temperature until reaching 0°C.

After that the phase transition will occur where the ice (solid) will get converted to liquid water. Until all the ice melts into water, at 0°C, its temperature will not rise.