Auto Principle AENG. Instructions: Answer Any Five Questions. Q.1a. Define/Explain the following heat related terms: i. Sensible Heat ii. Latent Heat iii. Latent Heat of fusion iv. Latent Heat of Vaporization.

To calculate the total heat required to evaporate the water, we need to consider two parts:

1. The sensible heat required to raise the temperature of the water from $15^\circ\text{C}$ to its boiling point ($100^\circ\text{C}$).
2. The latent heat required to change the water from liquid to steam at its boiling point.

Given values:
Volume of water ($V$) = $15 \text{ litres}$
Mass of water ($m$) = $15 \text{ kg}$ (since $1 \text{ litre}$ of water has a mass of $1 \text{ kg}$)
Initial temperature ($T_1$) = $15^\circ\text{C}$
Boiling temperature ($T_2$) = $100^\circ\text{C}$
Specific Heat Capacity of water ($c$) = $4.18 \text{ kJ/kg}^\circ\text{C}$
Latent Heat of vaporization of steam ($L_v$) = $2256 \text{ kJ/kg}$