What is the work done by a gas during expansion against a constant external pressure?
Practice Questions
1 question
Q1
What is the work done by a gas during expansion against a constant external pressure?
PΔV
ΔU
Q
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The work done by a gas during expansion against a constant external pressure is given by W = PΔV, where P is the pressure and ΔV is the change in volume.
Questions & Step-by-step Solutions
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Q
Q: What is the work done by a gas during expansion against a constant external pressure?
Solution: The work done by a gas during expansion against a constant external pressure is given by W = PΔV, where P is the pressure and ΔV is the change in volume.
Steps: 5
Step 1: Understand that work done by a gas is related to how much it expands.
Step 2: Identify that the work done (W) is calculated when the gas expands against a constant external pressure (P).
Step 3: Recognize that ΔV represents the change in volume, which is the final volume minus the initial volume of the gas.
Step 4: Use the formula W = PΔV to calculate the work done, where you multiply the constant external pressure (P) by the change in volume (ΔV).
Step 5: Make sure to use the correct units for pressure and volume to get the work done in the right units.
