SURFACE CHEMISTRY

SURFACE CHEMISTRY

Assessment

Flashcard

Chemistry

12th Grade

Hard

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20 questions

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1.

FLASHCARD QUESTION

Front

Which process does not occur at the interface of phases? Options: crystallisation, heterogenous catalysis, homogeneous catalysis, corrosion

Back

homogeneous catalysis

2.

FLASHCARD QUESTION

Front

At the equilibrium position in the process of adsorption, what is the relationship between ΔH and TΔS?

Back

ΔH = TΔS

3.

FLASHCARD QUESTION

Front

Which of the following interface cannot be obtained? liquid-liquid, solid-liquid, liquid-gas, gas-gas

Back

gas-gas

4.

FLASHCARD QUESTION

Front

Sorption

Back

both absorption and adsorption

5.

FLASHCARD QUESTION

Front

Extent of physisorption of a gas increases with ___________. Options: increase in temperature, decrease in temperature, decrease in surface area of adsorbent, decrease in strength of van der Waals forces.

Back

decrease in temperature.

6.

FLASHCARD QUESTION

Front

Extent of adsorption of adsorbate from solution phase increases with ________.

Back

increase in amount of adsorbate in solution.

7.

FLASHCARD QUESTION

Front

Which one of the following is not applicable to the phenomenon of adsorption? ΔH > 0, ΔG < 0, ΔS < 0, ΔH < 0

Back

ΔH > 0

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