Answer:
Explanation:
Remember that the key is the water so
using the formula q=m*s*deltT
We have the mass 2000g
we have the specific heat of water which is 1.00 cal/ g C
and the final temperature 20 C
Remember that delt T is the change in temperature meaning (Tfinal - Tinitial) Assuming that the water is at room temperature (25 C) before starting the reaction then
q= (2000 g)(1.00 cal/g C)(20-25)
q= -10, 000 cal
if you want you can convert to joules by multiplying by 4.314 J
In more simpler terms - If all the heat released was absorbed by the water, and it takes 1 calorie of heat to raise
the temperature of 1 gram of water by 1°C that is a total of 20 times 2000 or 40,000 cal.
or 40 kilocalories. If you want it in joules, there are 4.184 joules to one calorie so it is
4.184 times 40 or 167.36 kilojoules.
Hope that helped
