The rate of adsorption in general is ............. in the beginning and then.............. till equilibrium is attained .

Why the rate of physical adsorption decreases with the rise of temperature ?

According to collision theory of chemical reactions, rate of a reaction depends upon collision frequency and fraction of effective collisions. The rate of a reaction generally increases with rise in temperature mainly because of increase in number of effective collisions. Arrhenius proposed a quantitative relation between rate constant and temperature as k= Ae^(-E_a//Rt) where E_a is activation energy. It is equal to the difference between threshold energy and average kinetic energy of reacting molecules. Which of the following plot will be linear ?

Two small spheres each having mass m kg and charge q coulomb are suspended from a point by insultaing threads each l metre long but of negligible mass. If theta is the angle, each string makes with the vertical when equilibrium has been attained show that q^2 = (4m g l^2 sin ^2 theta tan theta) 4 pi upsilon_0

Adsorption is surface phenomenon, while absorption concerns with the whole mass of the absorbent. In adsorption, the substance is only retained on the surface and does not go into the bulk or interior of the solid or liquid. Absorption implies that substance is uniformly distributed throughout the body of the solid or liquid. In adsorption, the concentration of the adsorbed molecules is always greater in the immediate vicinity of the surface tlian in the free phase. Absorption involves bulk penetration of the molecules into the structure of the solid or liquid by some process of diffusion. Adsorption is a rapid process and equilibrium is attained in a short time. In absorption the equilibrium takes place slowly. Such substance is said to be sorbed and the phenomenon is known as sorption. How does equilibrium affects by adsorption ?

Adsorption is surface phenomenon, while absorption concerns with the whole mass of the absorbent. In adsorption, the substance is only retained on the surface and does not go into the bulk or interior of the solid or liquid. Absorption implies that substance is uniformly distributed throughout the body of the solid or liquid. In adsorption, the concentration of the adsorbed molecules is always greater in the immediate vicinity of the surface tlian in the free phase. Absorption involves bulk penetration of the molecules into the structure of the solid or liquid by some process of diffusion. Adsorption is a rapid process and equilibrium is attained in a short time. In absorption the equilibrium takes place slowly. Such substance is said to be sorbed and the phenomenon is known as sorption. What is phenomenon of adsorption.

What is e.m.f. of the cell, when the cell reaction attains equilibrium ?

Adsorption is surface phenomenon, while absorption concerns with the whole mass of the absorbent. In adsorption, the substance is only retained on the surface and does not go into the bulk or interior of the solid or liquid. Absorption implies that substance is uniformly distributed throughout the body of the solid or liquid. In adsorption, the concentration of the adsorbed molecules is always greater in the immediate vicinity of the surface tlian in the free phase. Absorption involves bulk penetration of the molecules into the structure of the solid or liquid by some process of diffusion. Adsorption is a rapid process and equilibrium is attained in a short time. In absorption the equilibrium takes place slowly. Such substance is said to be sorbed and the phenomenon is known as sorption. What is the phenomenon of absorption ?

Acid-base indicators are either weak organic acids or weak organic bases. Indicator change colour in dilute solution when the hydonium ion concentration reaches a particular calur For example. Phenolphthalein is a coloureless stbstance in any aqueous solution with a pH less than 8.3 In between the pH range 8.3 to 10, transition of colour (colourless to pink ) takes place and if pH of solution is greater than 10 solution is dark pink. Considering an acid indicator Hln, the equilibrium involving it and its conjgate base In^(-) can be represented as : " " underset("acidic from")(HIn)hArrH^(+)underset("basic from")(In^(-)) pH of solution can be computed as : " " pH=pK_(In)+log.([IN^(-)])/([HIn]) In general, transition of colour takes place in between the pH range pK_(In+-1. Select the correct statement (s) :