General Studies · Thermodynamics
During steam formation, the external work of evaporation is primarily defined as the:
- 1heat removed from saturated or superheated steam to make it a wet steam
- 2work done by the steam to increase its volume against external resistance✓
- 3work done on steam by an external force to reduce its volume
- 4heat supplied to steam to increase its temperature
Correct answer
work done by the steam to increase its volume against external resistance
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