Recent questions and answers in Surface Chemistry

The mass of gas adsorbed, x, per unit mass of adsorbate, m, was measured at various pressures, p. A graph between $\log{x\over m}$ and $\log p$ gives a straight line with slope equal to 2 and the intercept equal to 0.4771. The value of $x\over m$ at a ...

Amongst the following statements regarding adsorption, those that are valid are: (a) ΔH becomes less negative as adsorption proceeds. (b) On a given adsorbent, ammonia is adsorbed more than nitrogen gas. (c) On adsorption, the residual force acting along ...

Which of the following is used for the preparation of colloids ? (1) Ostwald process (2) Van Arkel Method (3) Mond Process (4) Bredig’s Arc Method

Which one of the following statements is not correct? (a) The value of equilibrium constant is changed in the presence of a catalyst in the reaction at equilibrium. (b) Enzymes catalyse mainly bio-chemical reactions. (c) Coenzymes increase the catalytic ...

Which mixture of the solutions will lead to the formation of negatively charged colloidal [Agl]l- sol. ? (1) 50 mL of 1 M AgNO3 + 50 mL of 1.5 M KI (2) 50 mL of 1 M AgNO3 + 50 mL of 2 M KI (3) 50 mL of 2 M AgNO3 + 50 mL of 1.5 M KI (4) 50 mL of 0.1 M AgNO3 ...