Which of the following statements is correct with respect to physisorption?a.It is reversibleb.ΔH < 0c.All of the aboved.It is spontaneous
Question
Which of the following statements is correct with respect to physisorption?a.It is reversibleb.ΔH < 0c.All of the aboved.It is spontaneous
Solution
The correct answer is c. All of the above.
Here's why:
a. Physisorption is reversible. This means it can go back and forth between the adsorbed and desorbed state.
b. ΔH < 0. This means the process is exothermic, i.e., it releases heat. In physisorption, weak van der Waals forces are involved, and when these forces of attraction are established, energy is released, making ΔH negative.
d. It is spontaneous. This means the process can occur without any external influence. Physisorption usually occurs spontaneously at low temperatures.
So, all the given statements a, b, and d are correct with respect to physisorption.
Similar Questions
Which of the following statements is true with respect to the extent of physisorption?a.Increases with increase in temperatureb.Decreases with increase in temperaturec.Decreases with increase in surface aread.Decreases with increase in the strength of Van der Waals forces
Which of the following can result in a transition from physisorption to chemisorption?a.Increase in surface areab.Increase in temperaturec.Decrease in pressured.Decrease in temperature
physisorption
A reaction at 1 bar is non-spontaneous at low temperature but becomes spontaneous at high temperature. Identify the correct statement about the reaction among the following :Both ΔH and ΔS are negativeBoth ΔH and ΔS are positiveΔH is positive while ΔS is negativeΔH is negative while ΔS is positive
Which of the following statements is true with respect to the types of adsorption?a.Chemisorption is stronger than physisorptionb.They are both equalc.Physisorption is stronger than chemisorptiond.They cannot be compared
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.