Stoichiometry
For the gaseous phase reaction, N₂ + O₂ ⇋ 2NO, ΔH = + 80 kJ/kg. mole; the decomposition of NO is favoured by

Increasing the concentration of N₂
Increase in pressure
Decrease in pressure
Decrease in temperature

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Stoichiometry
A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the

Atomic weight of the metal is 4
Equivalent weight of the metal is 4
Atomic weight of the metal is 2
Equivalent weight of the metal is 8

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