Which of the following best describes a catalyst? O It increases the number of collisions between reacting molecules. O It makes the reaction more endothermic. O It provides an alternate pathway with a lower activation energy. It makes the reaction more exothermic.

Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter6: Equilibria In Single-component Systems
Section: Chapter Questions
Problem 6.44E
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Question 17
Which type of distillation is used for miscible liquids with very small gap of boiling temperature?
Fractional distillation
Steam distillation
Simple distillation
Vacuum distillation
Transcribed Image Text:Question 17 Which type of distillation is used for miscible liquids with very small gap of boiling temperature? Fractional distillation Steam distillation Simple distillation Vacuum distillation
Question 18
Which of the following best describes a catalyst?
O It increases the number of collisions between reacting molecules.
O It makes the reaction more endothermic.
O It provides an alternate pathway with a lower activation energy.
O It makes the reaction more exothermic.
Transcribed Image Text:Question 18 Which of the following best describes a catalyst? O It increases the number of collisions between reacting molecules. O It makes the reaction more endothermic. O It provides an alternate pathway with a lower activation energy. O It makes the reaction more exothermic.
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