Question

ΔU^⊖of combustion of methane is – X kJ mol^–1. The value of ΔH^⊖ is ______.

विकल्प

• = ΔU^⊖

• > ΔU^⊖

• < ΔU^⊖

• = 0

Answer 1

ΔU^⊖of combustion of methane is – X kJ mol^–1. The value of ΔH^⊖ is < ΔU^⊖.

Explanation:

Since ΔH^⊖ = ΔU^⊖ + Δn_gRT and ΔU^⊖ = - X kJ mol^-1,

ΔH^⊖ = (- X) + Δn_gRT.

⇒ ΔH^⊖ < ΔU^⊖