Question

When water at 0°C freezes to form ice at the same temperature of 0°C, then it (a) absorbs some heat
(b) releases some heat
(c) neither absorbs nor releases heat
(d) absorbs exactly 3.34 Ã 105 J/kg of heat

Answer 1

Answer:

The correct answer is option (b)

Explanation:

Water gets converted to ice at 0°C while ice also gets converted to water at 0°C

So, in the case of water to ice, water releases its heat into the atmosphere and absorbs coldness from the atmosphere and becomes ice.

If it is the case of ice to water, then the ice absorbs heat from the atmosphere and releases its coldness in the atmosphere and gets converted to water.

Answer 2

Latent Heat of Energy is Being Absorbed or Released

Explanation:

• When we kept both ice & water, insulated in a vessel from the warm atmosphere outside, then both of them arrives in an equilibrium state with time.

• As the melting process rate, the ice & water molecules get the same rate of conversion but at the molecular level.

 

• The freezing as well as melting point, 32°F (0°C), is the desired point for both ice as well as water.

• Both Liquid, as well as Solid states, can be seen at 0°C, which clears that water can exist in both states.

• At 0 °C, the latent heat of fusion gets into existence but after getting the heat equivalent to it, which makes the ice to change its state from solid to liquid, which ensures that the solid form has been converted to liquid ($H_2O$ or water form)

Hence, The Triple Point of Water (273.16 K at 611.2 Pa (Pressure)) is called Zero Degrees Celsius.