Question

An electric heater raises the temperature of 120g of water in a thin light vessel through 10K in 2mins, when placed in 70g of water contained in a metal vessel of mass 0.55kg the temperature rises through 9K in the same time. Calculate from the above:
a)the heat supplied in 2mins
b)the power of the heater
c)the heat supplied to the 70g of water
d)the heat supplied to the metal vessel
e)the heat capacity of the vessel
f) the specific heat capacity of its material (specific heat capacity of water = 4200)