Physics · Thermodynamics
The external work of evaporation during steam generation is defined as the:
- 1heat expended in overcoming the internal molecular resistance to change in state from saturated water to dry steam
- 2heat expended in overcoming the external resistance to change in volume✓
- 3heat required for complete conversion of saturated liquid to dry saturated vapour
- 4heat required for complete conversion of ice to water
Correct answer
heat expended in overcoming the external resistance to change in volume
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