Surface Chemistry (Grades 11-12)
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As the temperature of the solid surface increases, the extent of adsorption of a gas
- remains unchanged
- first increases then decreases
- homogenous catalysts
- heterogenous catalysts
- acid catalysts
- base catalysts
What is the size of colloidal particles?
- [math]10^-10 m to 10^-9 m[/math]
- [math]10^-6 m to 10^-4 m[/math]
- [math]10^-9 m to 10^-6 m[/math]
- [math]10^-5 m to 10^-2 m[/math]
The rate of reaction depends on the surface area of catalyst in
- homogenous catalysis
- enzyme catalysis
- acid catalysis
- heterogenous catalysis
The bond formed by a gaseous reactant with the surface of solid catalyst is
What is formed when a gaseous reactant is in contact with the surface of a solid catalyst?
- homogeneous catalyst
- ionic bond
- heterogeneous catalyst
- metallic bond
Physisorption is defined as the adsorption that involves forces between adsorbate and adsorbent particles.
A colloidal system in which one liquid is dispersed in another liquid immiscible with it is called an emulsion.
A substance that decreases the rate of a chemical reaction is called an