Given C_(s) + O_2(g) → CO_2(g); ΔH = – 395 KJ
S_(s) + O_2(g) → SO_2(g); ΔH = – 295 KJ
CS_2(l) +3O_2(g) → CO_2(g) + 2SO_2(g); ΔH = – 1110 KJ
The heat of foramation of CS_2(l) is

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

+ 125 KJ mol^-1

250 KJ mol^-1

31.25 KJ mol^-1

62.5 KJ mol^-1

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

.eq.(1) +2 eq.(2) - eq (3)

(eq. = equation)

C_(s) + O_2(g) → CO_2(g); ΔH₁ = – 395 KJ

2S_(s) +2 O_2(g) →2 SO_2(g); ΔH₂ =2( – 295) KJ

CO_2(g) + 2SO_2(g) →CS_2(l) +3O_2(g) ; ΔH₃ = + 1110 KJ

C_(s) + 2S_(s) → CS_2(l) ; ΔH_f = ΔH₁ + ΔH₂ + ΔH₃

ΔH_f(CS₂) = +125 KJ/mole

JEE

NEET

Foundation JEE

Foundation NEET

CBSE