Answer:
Explanation:
To calculate the moles, we use the equation:
According to stoichiometry :
2 moles of releases = 6542 kJ of heat
0.9858 moles of release = of heat
Thus heat given off by burning 7.700 g of will be absorbed by water.
Q = Heat absorbed= 3224kJ = 3224000J (1kJ=1000J)
m= mass of water = 5691 g
c = specific heat capacity =
Initial temperature of the water = = 21.0°C
Final temperature of the water = = ?
Putting in the values, we get:
The final temperature of the water is