500g of water is heated so that its temperature rises from 30°C to 72°C in 7 minutes. calculate the supplied per minute. (Specific heat capacity of water is 4200Jkg−1K−1 by Sunday | Aug 29 | Physics WAEC | 0 comments A. 9000J B. 12600J C. 21000J D. 25200J E. 88200J Correct Answer: Option B – 12600J Users Also Read These:0.5kg of water at 10ºC is completely converted to…A solid of mass 0.5kg initially at 50oC melts at…Calculate the energy required to vapourize 50g of…An immersion heater rated 400W, 220V is used to heat…A quantity of hot water at 100ºC is added to 400g of…