Given : (i) C(graphite) + O2(g) → CO2(g) ; ΔrHΘ = x kJ mol–1(i

1.	Given : (i) C(graphite) + O2(g) → CO2(g) ; ΔrHΘ = x kJ mol–1(ii) C(graphite) + 1/2O2(g) → CO2(g) ; ΔrHΘ = y kJ mol–1(iii) CO(g) + 1/2O2(g) → CO2(g) ; ΔrHΘ = z kJ mol–1 Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct? (1) x = y – z (2) x = y + z (3) z = x + y (4) y = 2z – x
Answer» Correct option: (2) x = y + z

Given : (i) C(graphite) + O2(g) → CO2(g) ; ΔrHΘ = x kJ mol–1(ii) C(graphite) + 1/2O2(g) → CO2(g) ; ΔrHΘ = y kJ mol–1(iii) CO(g) + 1/2O2(g) → CO2(g) ; ΔrHΘ = z kJ mol–1 Based on the above thermochemical equations, find out which one of the following algebraic relationships is correct? (1) x = y – z (2) x = y + z (3) z = x + y (4) y = 2z – x

Answer»

Correct option: (2) x = y + z

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