Recall that work (w) is given by:
At constant V → w = 0
Suppose that the gas-phase reaction 2NO(g) + O2(g) → 2NO2(g) were carried out in a constant-volume container at constant temperature.
(a) Would the measured heat change represent ΔH or ΔE?
(b) If there is a difference, which quantity is larger for this reaction?
(c) Explain your answer to part (b).
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