Question

8.
For the process
X ----Y
|. |
A. B

AH for (A → X) = 50 kJ
AH for (Y → X) = 20 kJ
AH for (B + Y) = 30 kJ
Then AH for A + B will be
(1) 100 kJ
(2) -100 kJ
(3) Zero kJ
(4) -50 kJ​

Answer 1

Answer:

Explanation:

A(g)+3B(g)⟶3C(g)+3D(g)

△E=17Kcal    T=27

o

C=300K

△H=?             R=2calK

−1

mol

−1

△E=△H+nR△T                                       n=no. of product-no. of reactant

⇒17Kcal=△H+

1000

2×2×300

​

Kcal        n=6−4=2

⇒17Kcal=△H+1.2Kcal

△H=15.8Kcal .