Answer:
9945.6 J
Explanation:
Amount of heat = Mass * Heat Capacity * Temperature Change
Heat capacity of Water = 4.2 J/gC
Amount of heat = 64 * 4.2 * (69 - 32)
Amount of heat = 64 * 4.2 * 37
Amount of heat = 9945.6 J
I think the answer is a or c
Explanation:
The reaction equation will be as follows.

Using bond energies, expression for calculating the value of
is as follows.

On reactant side, from
number of bonds are as follows.
C-C bonds = 1
C-H bonds = 6
From
; Cl-Cl bonds = 1
On product side, from
number of bonds are as follows.
C-C bonds = 1
C-H bonds = 5
C-Cl bonds = 1
From HCl; H-Cl bonds = 1
Hence, using the bond energies we will calculate the enthalpy of reaction as follows.

=
= -102 kJ/mol
Thus, we can conclude that change in enthalpy for the given reaction is -102 kJ/mol.