Which of the following statements is correct for the spontaneous adsorption of a gas?
1. | ∆ S is negative and therefore, ∆ H should be highly positive |
2. | ∆ S is negative and therefore, ∆ H should be highly negative |
3. | ∆ S is positive and therefore, ∆ H should be negative |
4. | -∆ S is positive and therefore, ∆ H should also be highly positive |
The Langmuir adsorption isotherm is deduced using the assumption:
1. | The adsorption takes place in multilayers |
2. | The adsorption sites are equivalent in their ability to adsorb the particles |
3. | The heat of adsorption varies with coverage |
4. | The adsorbed molecules interact with each other |
A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with a slope equal to:
1. log
2. n
3.
4. log 1/k