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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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u are calculating Chapter 10.4, Problem 1CT, u are calculating in a chemistry problem. What if you confuse the system and the surroundings? How in a chemistry problem. What if you confuse the system and the surroundings? How would this affect the magnitude of the answer you calculate? The sign?

Interpretation Introduction

Interpretation:

The effect of misunderstanding in between system and surrounding on calculation of ΔE should be determined.

Concept Introduction:

Energy can be defined as the capacity to perform work or any task or to transfer the heat form one to another activity. It is divided into two types:

  1. Kinetic energy, the energy due to motion.
  2. Potential energy is the energy occupied by a system through its composition.

During any reaction, energy is released or absorbed, making a reaction exothermic or endothermic respectively.

In thermodynamics, three laws are represented to express different ideas of energy. The first law of thermodynamics states that energy never created or destroyed, and it is just transformed from one to another form.

Explanation

The internal energy represented as E, is the sum of all energies that is contained by the substance. This internal energy has some forms of kinetic energies, attraction and repulsion energies occurring in between subatomic particles like, atoms, ions, molecules etc.

The difference in between the initial and final energies of chemical reaction is known as ΔE.

ΔE=EinitialEfinal

An energy can flow in or out of the system through two process, whether any application of heat or occurrence of any work. The heat and work are represented as q and w. The ΔE can be calculated by below formula:

ΔE=(amount of heat absorbed by system)+(amount of work done by syste

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