Which of the following is correct?
The extent of adsorption depends on the temperature.
The extent of adsorption depends on the pressure of the gas
The extent of adsorption has an upper limit.
All of these
Adsorption and desorption process always occur simultaneoulsy and equilibrium occurs between two processes. Hence, adsorption has definitely certain limit.
Moreover, the extent of adsorption also depends on temperature, pressure. The extent of adsorption increases with increase in pressure and decrease in temperature.
Therefore, the option number (4) is correct.
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