(b) Heat is generated by the core of a nuclear reactor, this heat is removed by pumping cooling water through the core at a rate of 45 x 106 kg/h to generate steam. Cooling water, initially at 30 °C...

Extracted text: (b) Heat is generated by the core of a nuclear reactor, this heat is removed by pumping cooling water through the core at a rate of 45 x 106 kg/h to generate steam. Cooling water, initially at 30 °C is continuously pumped through the reactor so that the outlet temperature is 748 °C and the core temperature remains constant. Calculate the rate of heat generated by the core of a nuclear reactor (in joules per second).