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At a temperature of 180 K, O(2) gas adso...

At a temperature of 180 K, `O_(2)` gas adsorbs on Pt surface following Freundlich adsorption isotherm. Following experimental data is obtained.

where P is partial pressure of gas and x/m is mass of gas adsorbed per gm of platinum. Calculate millimoles of `O_(2)` adsorbed per gm of platinum at 4 bar pressure and 180 K.

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