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In a constant pressure process, how is the work done calculated?

Practice Questions

Q1
In a constant pressure process, how is the work done calculated?
  1. W = PΔV
  2. W = ΔH
  3. W = ΔU
  4. W = Q + ΔH

Questions & Step-by-Step Solutions

In a constant pressure process, how is the work done calculated?
  • Step 1: Identify that the process is happening at constant pressure.
  • Step 2: Determine the pressure (P) of the system. This is a constant value.
  • Step 3: Measure the initial volume (V1) and the final volume (V2) of the system.
  • Step 4: Calculate the change in volume (ΔV) by subtracting the initial volume from the final volume: ΔV = V2 - V1.
  • Step 5: Use the formula for work done: W = P * ΔV.
  • Step 6: Multiply the constant pressure (P) by the change in volume (ΔV) to find the work done (W).
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