Compared to a burn due to water at $100^{\circ}C$,a burn due to steam at $100^{\circ}C$ is

What is vaporization? What is normal boiling point?

When a man eats $100 \, g$ of ice in a minute,how much power will he get? The latent heat of ice is $80 \, cal/g$.

Values for latent heat in Column-$I$ and its values are given in Column-$II$. Match the following:

Column-$I$	Column-$II$
$(a)$ Latent heat of vaporization $L_V$	$(i)$ $22.6 \times 10^5 \, J/kg$
$(b)$ Latent heat of fusion $L_f$	$(ii)$ $33.3 \times 10^5 \, J/kg$
	$(iii)$ $3.33 \times 10^5 \, J/kg$

Two substances $A$ and $B$ of equal mass are heated at a constant rate of $6 \ cal \ s^{-1}$. The graph shows the temperature versus time. What is the ratio of the heat absorbed for complete melting $H_A/H_B$?

The graph signifies: