In Indothermic reaction with the increase of temperature adsorption will be constant increase decrease none of these
On basis of which theory Langmuir derived isotherm equation ? Thermodynamics Collosion theory Kinetic theory of gases Wave mechanic theory
Which of the following is not true regarding to Freudlich adsorption isotherm ? This isotherm is applicable in certain limit of pressure Constant k and n change with temperature It shows deviation at low pressure Freundlich isotherm is empirical, there is no theoritical proof of it
(21) What will be the intercept in a graph of Freundlich adsorption isotherm ? k log k 1-a 1-n
Which gaseous molecule has highest value of physical adsorption enthalpy - H2 N2 H2O He
On which factor adsorption of gas on solid adsorbtion depend ? On temprature On pressure of gas On nature of adsorbent All of the above
What is used to prevante electronic instruments clamaged by the moisture ? Silica gel Zeolite Chromatographic plate All of the above
How molecules of gases are deposited on the surface of solid during physical adsorption ? By electrostatic forces By chemical forces By gravitational forces By van der waals forces
At which temperature chemical adsorption occurs At high temperature At very low temperature At low temperature Temperature does not affect
Which of the following statement is not true ? The value of adsorption enthalpy of physical adsorption is less than chemical adsorption. Physical adsorption occurs due to van der waals forces Chemical adsorption decreases at high temperature and low pressure. Physical adsorption is reversible.