Three thermochemical equations are given below: i. C(graphite) + O₂(g) → CO₂(g); ΔH = x kJ mol⁻¹ ii. C(graphite) + 1/2 Ω₂(g) → CO(g); ΔH = y kJ mol⁻¹ iii. CO(g) + 1/2 Ω₂(g) → CO₂(g); ΔH = z kJ mol⁻¹ Based on the above equations, find out which of the relationship given below is correct:
A
z = x + y
B
x = y - z
C
y = 2z - x
D
x = y - z

Question

Three thermochemical equations are given below: i. C(graphite) + O₂(g) → CO₂(g); ΔH = x kJ mol⁻¹ ii. C(graphite) + 1/2 Ω₂(g) → CO(g); ΔH = y kJ mol⁻¹ iii. CO(g) + 1/2 Ω₂(g) → CO₂(g); ΔH = z kJ mol⁻¹ Based on the above equations, find out which of the relationship given below is correct:

A

z = x + y

B

x = y - z

C

y = 2z - x

D

x = y - z

Accepted Answer

z = x + y

Answer

x = y - z

Answer

y = 2z - x

Answer

x = y - z

NEET 2013 Chemistry Hess's Law MCQ Question

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