Classify each process as exothermic or endothermic.(a)

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo Tro

Problem 63P Chapter 3

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo Tro

Introductory Chemistry | 5th Edition

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Problem 63P

Classify each process as exothermic or endothermic.

(a) gasoline burning in a car

(b) isopropyl alcohol evaporating from skin

(c) water condensing as dew during the night

Step-by-Step Solution:

Solution 63P :

Step 1:

Here, we have to classify each process if its exothermic or endothermic. First let’s see what is an endothermic and exothermic process.

        An endothermic process is a process or reaction in which the system absorbs energy from its surroundings usually in the form of heat.

        An exothermic  process is a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, light (ex: a spark, flame, or flash), electricity (ex : a battery), or sound (ex: explosion heard when burning hydrogen).

Step 2 :

(a) gasoline burning in a car :

        Gasoline burning in a car is a reaction in which the energy from the system is released as heat energy and hence is an exothermic process.

Step 3 of 4

Chapter 3, Problem 63P is Solved
Step 4 of 4

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo Tro
ISBN: 9780321910295

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