Which of the following chemical reactions will be favoured by low pressure ?
Correct answer: C. N2O2 ⇌ 2NO2
- A. 2HI ⇌ H2 + I2
- B. N2 + O2 ⇌ 2NO
- C. N2O2 ⇌ 2NO2
- D. None of these
Explanation
Lower pressure favours the side with more gas molecules. In N₂O₂ ⇌ 2NO₂, the number of gas moles increases from one to two, whereas reactions A and C have equal moles on both sides.
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