Answer:49.3
Explanation:
Given
mass of water
mass of tank
initial of temperature of water =
initial of temperature of tank=
Specific heat of water =4.184kJ/kg k
Specific heat of copper=0.386 KJ/kg k
From first law of thermodynamics we have
Given tank is insulated thus Q=0
work will be negative as it is being done on system
Not sure if you wanted a graph or something else but this is the graph. Hope it helps!