Question

For one mole of AB(s);
Alattice Hº = +X kJ mol-1
रि pala
hydrationH2 =-y k/ mol-
The enthalpy of solution is
R =
(x - y) kJ mol-1
(-x - y) kJ mol-1
DZ
(y - x) kJ mol-1
(x + y) kJ mol-1​

Answer 1

Explanation:

6

H

6

(Benzene)

+

2

15

O

2

→6CO

2

+3H

2

O

ΔH

rxn

=6ΔH

f

CO

2

+3ΔH

f

H

2

O−ΔH

f

C

6

H

6

ΔH

f

(Benzene)=6×(−393.5)+3(−285.8)+3267

⇒−3218.49+3267

ΔH

f

(Benzene)=48.51KJ

ΔH

rxn

=−3267KJ

Option B is correct.