Forum

From given followin...
 
Notifications
Clear all

From given following equations and ΔH° values, determine the enthalpy of reaction at 298 K for the reaction:

1 Posts
2 Users
0 Likes
475 Views
0
Topic starter

From given following equations and ΔH° values, determine the enthalpy of reaction at 298 K for the reaction:

C2H4(g) + 6F2(g) → 2CF4(g) + 4HF(g)

H2(g) + F2(g) → 2HF(g); ΔH°1 = -537 kJ

C(s) + 2F2(g) → CF4(g); ΔH°2 = -680 kJ

2C(s) + 2H2(g) → C2H4(g); ΔH°3 = 52 kJ

(a) -1165

(b) -2486

(c) +1165

(d) +2486

1 Answer
0

Correct answer: (b) -2486

Explanation:

ΔH° = 2 × ΔH°1 + 2 × ΔH°2 - ΔH°3

= -2486 kJ

Share:

How Can We Help?