
Understanding Work in Thermodynamics
Interactive Video
•
Physics
•
11th - 12th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is work defined when the surroundings do work on the system?
As a negative number
As a positive number
As an undefined value
As zero
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the energy of a gas when it expands?
The gas gains energy
The gas loses energy
The energy remains constant
The energy is undefined
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a compression process, what is the sign of work done on the system?
Negative
Zero
Positive
Undefined
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the ultimate definition of work in terms of pressure and volume?
P external plus DV
P external divided by DV
Negative P external times DV
Positive P external times DV
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the advantage of performing work calculations at constant pressure?
It is not advantageous
It requires more variables
It simplifies the integral
It makes the math more complex
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a reversible process aim to achieve?
Maximum energy loss
Constant temperature
Rapid changes in the system
Equilibrium throughout the process
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a reversible isothermal expansion, what must be true about the external pressure?
It must be less than the gas pressure
It must be zero
It must equal the gas pressure
It must be greater than the gas pressure
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