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Which equation describes the change in internal energy for an ideal gas during a

Practice Questions

Q1
Which equation describes the change in internal energy for an ideal gas during an isothermal process?
  1. ΔU = 0
  2. ΔU = Q + W
  3. ΔU = nC_vΔT
  4. ΔU = nRΔT

Questions & Step-by-Step Solutions

Which equation describes the change in internal energy for an ideal gas during an isothermal process?
  • Step 1: Understand what an isothermal process is. It is a process where the temperature of the system remains constant.
  • Step 2: Know that for an ideal gas, the internal energy (U) depends only on temperature.
  • Step 3: Since the temperature does not change in an isothermal process, the internal energy also does not change.
  • Step 4: Therefore, the change in internal energy (ΔU) is equal to zero.
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