Consider the reaction represented by the equation below: H2(g) + 12(s) ⇌ 2HI(g) ∆H negative. Which of the following takes place when the temperature of the reaction vessel is decreased?

  • A the gases condense
  • B the yield of hydrogen increases
  • C the concentration of the reactants remain constant
  • D more of the hydrogen iodide decomposes
  • E the yield of hydrogen iodide increases
waec 1991chemistry

The correct answer is E. the yield of hydrogen iodide increases

No explanation given
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