The work done by an ideal gas during an isothermal expansion is given by which f

Practice Questions

Q1
The work done by an ideal gas during an isothermal expansion is given by which formula? (2023)
  1. W = PΔV
  2. W = nRT ln(Vf/Vi)
  3. W = ΔU
  4. W = 0

Questions & Step-by-Step Solutions

The work done by an ideal gas during an isothermal expansion is given by which formula? (2023)
  • Step 1: Understand that an isothermal expansion means the temperature of the gas remains constant.
  • Step 2: Know that 'W' represents the work done by the gas.
  • Step 3: Identify 'n' as the number of moles of the gas.
  • Step 4: Recognize 'R' as the ideal gas constant, which is a specific value.
  • Step 5: Understand that 'T' is the absolute temperature of the gas in Kelvin.
  • Step 6: Identify 'Vi' as the initial volume of the gas and 'Vf' as the final volume after expansion.
  • Step 7: Combine all these elements into the formula: W = nRT ln(Vf/Vi).
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