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## Homework Statement

2NO

_{2(g)}-> N

_{2}O

_{4(g)}

- Calculate ΔG at 298.15 K
**- complete** - Calculate K
_{P}at 298.15 K - Calculate equilibrium pressure of a system with initial conditions of 1 mol N
_{2}O_{4}, confined to 24.46 liters fixed volume, at 298.15 K.

## Homework Equations

ΔG = -RTlnK

K

_{P}= (P

_{products})

^{n}/ (P

_{reactants})

^{n}

## The Attempt at a Solution

ΔG = -RTlnK

ΔG = ΔG

_{N2O4}- 2ΔG

_{NO2}

ΔG = (97.9 kJ/mol) - 2(51.3 kJ/mol)

**ΔG = -4.73 kJ/mol**

K

_{P}= P

_{N2O4}/ (P

_{NO2})

^{2}

How do you determine the partial pressures of either NO

_{2}or N

_{2}O

_{4}?