Recent content by davet101

Thanks for that, think it's done the job. My solution to the problem is now this: From my notes the s.h.c of water is: 4200J/Kg K Using the formula: Q = mc(t1-t2) In this case m=90 (as far as i know 1 litre of water has a mass of 1kg) c=4200 and t1-t2=35oC (the change in...

Hi, I've been attempting this problem all week now and I can't seem to even begin to obtain an answer which is highly frustrating, so here's the problem: An electric boiler is required to raise the temperature of 90 litres of water per hour by 35oC. If the input required to affect this...