A beaker contains 0.400 kg0.400\text{ kg}0.400 kg of water at a temperature of 15.0∘C15.0^\circ\text{C}15.0∘C. The water is heated, and its internal energy increases by 25.2 kJ25.2\text{ kJ}25.2 kJ. The specific heat capacity of water is 4200 J/(kg∘C)4200\text{ J}/(\text{kg}^\circ\text{C})4200 J/(kg∘C). What is the temperature of the water after it has been heated?
119 exam-style questions on CIE IGCSE Physics 2.2.2a Internal energy and temperature. Each one has a worked solution and a mark scheme showing where the marks go.