College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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![### Energy Change Calculation in Thermodynamics
In thermodynamics, energy change (\(\Delta E\)) can be calculated when you know the amount of heat absorbed by the system and the work done by the system.
#### Problem Statement:
A gas absorbs 50 kJ of heat and does 25 kJ of work. Calculate \(\Delta E\).
\(\Delta E\) = [ ] kJ
#### Calculation:
To solve for \(\Delta E\), we can use the first law of thermodynamics, which is expressed as:
\[
\Delta E = q - w
\]
where:
- \(q\) is the heat absorbed by the system (in kJ)
- \(w\) is the work done by the system (in kJ)
Given:
- \(q = 50\) kJ
- \(w = 25\) kJ
Substitute the given values into the equation:
\[
\Delta E = 50 \text{ kJ} - 25 \text{ kJ}
\]
Solving this:
\[
\Delta E = 25 \text{ kJ}
\]
Thus, the change in energy \(\Delta E\) is \(25\) kJ.
#### Interactive Element:
There is an interactive component where you can input your answer and submit it for verification.
- **Submit Answer:** To check your calculation, click on the "Submit Answer" button.
- **Try Another Version:** If you would like to attempt a similar problem with different values, click on the "Try Another Version" button.
This exercise helps in understanding the first law of thermodynamics and practicing the calculation of energy changes in a thermodynamic system.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F96f2e08c-aa5d-4493-8570-9d5ecf302bf0%2F0896bee7-a5b8-4ab9-acd3-d20cdfd0540f%2Fs234rwq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Energy Change Calculation in Thermodynamics
In thermodynamics, energy change (\(\Delta E\)) can be calculated when you know the amount of heat absorbed by the system and the work done by the system.
#### Problem Statement:
A gas absorbs 50 kJ of heat and does 25 kJ of work. Calculate \(\Delta E\).
\(\Delta E\) = [ ] kJ
#### Calculation:
To solve for \(\Delta E\), we can use the first law of thermodynamics, which is expressed as:
\[
\Delta E = q - w
\]
where:
- \(q\) is the heat absorbed by the system (in kJ)
- \(w\) is the work done by the system (in kJ)
Given:
- \(q = 50\) kJ
- \(w = 25\) kJ
Substitute the given values into the equation:
\[
\Delta E = 50 \text{ kJ} - 25 \text{ kJ}
\]
Solving this:
\[
\Delta E = 25 \text{ kJ}
\]
Thus, the change in energy \(\Delta E\) is \(25\) kJ.
#### Interactive Element:
There is an interactive component where you can input your answer and submit it for verification.
- **Submit Answer:** To check your calculation, click on the "Submit Answer" button.
- **Try Another Version:** If you would like to attempt a similar problem with different values, click on the "Try Another Version" button.
This exercise helps in understanding the first law of thermodynamics and practicing the calculation of energy changes in a thermodynamic system.
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