How much heat is transferred in the process of completely melting a 1.6kg block of ice starting at -15 degrees Celsius? Is this process endothermic or exothermic?

Explanation:

Endothermic processes absorb energy. The final state contains more energy than the initial state.

Since ice absorbs heat energy in the process of completely melting this is an endothermic process.

The process involves two stages: 1) heating the ice up to the melting point, which is 0ºC, and 2) melting the ice.

1. Heating the ice from -15ºC to 0ºC

a) Formula: Q = m×C×ΔT

b) Calculations:

2. Melting the ice at 0ºC

a) Formula:  L = m × ΔHf

b) Calculations

2. Total heat

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.