Asked by Maya
How much time a 250 watt heater takes to heat up 1 kg of water from 20 degree c to 50 degree c?
Answers
Answered by
Damon
how many Joules do you need?
Joules needed = specific heat * mass * change in temp
then
watts * seconds = Joules needed
Joules needed = specific heat * mass * change in temp
then
watts * seconds = Joules needed
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