What is the value of the specific heat of water using the law of equipartition of energy?

At which temperature is the specific heat of water minimum (in $^\circ C$)?

$A$ $10\, kW$ drilling machine is used to drill a bore in a small aluminium block of mass $8.0\, kg$. How much is the rise in temperature of the block in $2.5$ minutes,assuming $50\, \%$ of power is used up in heating the machine itself or lost to the surroundings? (Specific heat of aluminium $= 0.91\, J\, g^{-1}\, K^{-1}$)

What is the heat capacity of a substance?

On what does the value of heat capacity depend?

Which of the substances $A, B$,or $C$ has the highest specific heat? The temperature-time graph is shown.