Question A034B

For the adsorption of N_{2} on 1.00 g of ZnO the volumes (converted to 0 degrees * C and 1 atm) of N_{2} adsorbed were 1.06 and 2.08c * m ^ 3 * g ^ – 1 when the equilibrium pressures were 183 and 533 mmHg respectively. Assuming Langmuir behavior, i) Calculate the equilibrium constant (or adsorption constant)

ii) If N_{2} molecule covers 1.2 * 10 ^ – 18 * m ^ 2 calculate the surface area of a 1 g sample of

ZnO.

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