Enthalpy of CH₄ + ¹/² O₂ → CH₃OH is negative. If enthalpy of combustion of CH₄

Enthalpy Of Ch O Choh Is Negative Chemistry Question

Enthalpy of CH₄ + ¹/² O₂ → CH₃OH is negative. If enthalpy of combustion of CH₄ and CH₃OH are x and y respectively. Then which relation is correct

Options

(a) x > y
(b) x < y
(c) x = y
(d) x > y

Correct Answer:

x < y

Explanation:

CH₄ + 1/2 O₂ → CH₃OH, ΔH = x -y; Given ΔH = negative. hence, x-y < 0, or n < y.

Related Questions:

  1. Which of the following processess are not used for the purification of solid
  2. Heat of formation of H₂O(g) at 25⁰C is -243 kJ,ΔE for the reaction
  3. A corked flask containing boiling water and its vapour is allowed
  4. Among the following, identify the compound which cannot act as both oxidising
  5. Among the following the least thermally stable is

Topics: Thermodynamics (179)
Subject: Chemistry (2512)

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