Understanding adiabatic work : Introductory video
Before watching the video read the questions below. As you watch the video try to answer them
Questions
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Before watching the video explain what what it means when we state that a transition takes place adiabatically.
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Why does the piston head apply a force on the gas and how is this force connected to the pressure applied on the gas
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Write an expression for the work done when the piston head moves upwards by an amount $\Delta x$ and hence derive an expression
for the amount of work done when a gas expands by an amount $\Delta V$.
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Explain why the quantity that you arrived at in the previous question has a negative sign in front of it?
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Referring back to earlier answer to this comprehension answer the following question. When can this expression be used to calculate the
work done when a gas expands? In other words, does this this equation give you the work done whenever a gas expands?
- Before watching the video explain what what it means when we state that a transition takes place adiabatically.
- Why does the piston head apply a force on the gas and how is this force connected to the pressure applied on the gas
- Write an expression for the work done when the piston head moves upwards by an amount $\Delta x$ and hence derive an expression for the amount of work done when a gas expands by an amount $\Delta V$.
- Explain why the quantity that you arrived at in the previous question has a negative sign in front of it?
- Referring back to earlier answer to this comprehension answer the following question. When can this expression be used to calculate the work done when a gas expands? In other words, does this this equation give you the work done whenever a gas expands?