The heat capacity of (the interior of a re frigerator is 4.2 kJ/K The minimum Work that must be done to lower the internal temperature from 18°C to 17°C when the of r.iitb@gmail.com 3 outside temperature is 27°C will be (a)2.20kJ (d)0.14k.J (b)0.80kJ (c)0.30kJ