History Bookmarks Wll00 FHSU - CHEM 122 Lecture-Spring15- DONNELLY: Chapter 13:

Question

History Bookmarks Wll00 FHSU - CHEM 122 Lecture-Spring15- DONNELLY: Chapter 13: linglearning.com/ibiscms/mod/ibis/view.php?id=15 800 10 ple Disney ESPN Yahoo! Exit Circuit- FHSU CHEM 122 Le -, Print Calculator Periodic Table Question 28 of 29 How are the following aspects of a reaction affected by the addition of a catalyst? Increased Decreased Not affected rate of the reverse reaction activation energy of the reverse reaction rate of the forward reaction activation energy of the forward reaction What other aspects of a catalyzed reaction are different from the uncatalyzed reaction? Select all that apply. the mechanism the overall reaction Hint Previous Check about us careers

Explanation / Answer

1. A catalyst increases the rate of forward reaction and rate of backward reaction equally.

A catalyst decreases the activation energy of both forward and backward reactions in order to increase the rate.

2. Mechanism of a reaction a catalysed reaction is different from the uncatalysed reaction.

deltaHrxn is uneffected by the catalysed reaction

The overall reaction is unaffected by the use of a catalyst.

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