The enthalpy change, ΔH, for a reaction at constant pressure is defined as: ΔH = ΔE + PΔV. For which of the following reactions will ΔH be approximately equal to ΔE? Select all that apply. Group of answer choices 2 NO2(g) -> N2(g) + 2 O2(g)

The given question is incomplete. The complete question is:

The enthalpy change, ΔH, for a reaction at constant pressure is defined as: ΔH = ΔE + PΔV. For which of the following reactions will ΔH be approximately equal to ΔE? Select all that apply. Group of answer choices

None of the above

Explanation:

Relation of  with  is given by the formula:

    as

Where,

= enthalpy change

= internal energy change

R = Gas constant

T = temperature

= change in number of moles of gas particles =

1. For

2. For

3.  

Thus for reactions 2 and 3,  ΔH be approximately equal to ΔE

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