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NEETChemistryThermodynamics (C)

What is the formula for calculating work done (w) when pressure (P) is not constant during a process?

Options

  1. Aw = P∆V
  2. Bw = PdV
  3. Cw = P ex ∆V
  4. Dw = P ex (V f - V i )

Correct answer

B. w = PdV

Step-by-step solution

When pressure is not constant during a process, work done is calculated using the formula w = ∫PdV, where ∫ represents integration.

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