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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Give an example of a process in which matter spread is a driving force and an example of a process in which energy spread is a driving force, and explain each. These examples should be different from the ones given in the text.

Interpretation Introduction

Interpretation:

One example of the process where matter spread is a driving force and one example where energy spread is the driving force should be determined.

Concept Introduction:

Energy is the ability to do work or produce heat. The law of conservation of energy says that theenergy cannot be created or destroyed, but it can be converted from one type to another. It is also called the first law of thermodynamics, according to which the energy of the universe is constant.

There are two driving forces in nature namely energy and matter spread. These driving forces are responsible for affecting the reaction to go to completion. Energy spread is the concentratedenergy which disperses widely. It is always for an exothermic reaction. Molecules spread meansmolecules spread to occupy a large volume.

Explanation

Dissolution of Na2 SO4 in water is an example where matter spread is the driving force. This reaction is spontaneous. It involves energy concentration, but the driving force responsible for the completion of this reaction is matter spread. Both Na+and SO4 2 - which are closely packed in the solid Na2 SO4 spreads around randomly in a much larger volume...

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