Latent heat of ice is $80 \, cal/g$. $A$ man melts $60 \, g$ of ice by chewing in $1 \, minute$. His power is ........ $W$.

What is latent heat of fusion? What is latent heat of vaporization? Give its value for water.

$A$ quantity of heat required to change the unit mass of a solid substance,from solid state to liquid state,while the temperature remains constant,is known as

The graph shown in the figure represents the change in the temperature of $5 \, kg$ of a substance as it absorbs heat at a constant rate of $42 \, kJ \, min^{-1}$. The latent heat of vaporization of the substance is ......... $kJ \, kg^{-1}$.

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 $H_A/H_B$?

When boiling water converts into steam,what is the specific heat of water at this state?