Answer:
-4200J
Explanation:
Since q = mc∆T
where:
m = mass of the substance
c = specific heat capacity of the substance
∆T = change in temperature in Kelvin
but;
the specific heat capacity of water = 4.2J/K/g
Therefore q = 50*4.2*(253-273)
q = -4200J
Note: the negative is only used to indicate heat loss
Hope this helps
