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When saturation pressure of water vapour increases
- a)saturation temperature decreases
- b)enthalpy of evaporation decreases
- c)enthalpy of evaporation increases
- d)specific volume change of phase increases
Correct answer is option 'B'. Can you explain this answer?
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When saturation pressure of water vapour increasesa)saturation tempera...
As saturation pressure increases, enthalpy of vaporization decreases
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When saturation pressure of water vapour increasesa)saturation tempera...
Explanation:
Enthalpy of Evaporation:
When the saturation pressure of water vapor increases, it means that more energy is required to change water from liquid to vapor phase. This increase in pressure leads to an increase in the enthalpy of evaporation. Enthalpy of evaporation is the amount of heat energy needed to transform a unit mass of liquid into vapor at a given pressure.
Effect on Saturation Temperature:
The saturation temperature is the temperature at which a substance changes from liquid to vapor phase at a given pressure. When the saturation pressure of water vapor increases, the saturation temperature also increases. This is because higher pressure requires higher temperatures to reach the vaporization point.
Specific Volume Change:
When water vapor pressure increases, the specific volume change of the phase also increases. Specific volume is the volume occupied by a unit mass of substance. As pressure increases, the volume occupied by the vapor phase also increases.
Therefore, when the saturation pressure of water vapor increases, the enthalpy of evaporation increases as more energy is needed for vaporization. Additionally, the saturation temperature increases due to the higher pressure requirements, and the specific volume change of the phase also increases.
Enthalpy of Evaporation:
When the saturation pressure of water vapor increases, it means that more energy is required to change water from liquid to vapor phase. This increase in pressure leads to an increase in the enthalpy of evaporation. Enthalpy of evaporation is the amount of heat energy needed to transform a unit mass of liquid into vapor at a given pressure.
Effect on Saturation Temperature:
The saturation temperature is the temperature at which a substance changes from liquid to vapor phase at a given pressure. When the saturation pressure of water vapor increases, the saturation temperature also increases. This is because higher pressure requires higher temperatures to reach the vaporization point.
Specific Volume Change:
When water vapor pressure increases, the specific volume change of the phase also increases. Specific volume is the volume occupied by a unit mass of substance. As pressure increases, the volume occupied by the vapor phase also increases.
Therefore, when the saturation pressure of water vapor increases, the enthalpy of evaporation increases as more energy is needed for vaporization. Additionally, the saturation temperature increases due to the higher pressure requirements, and the specific volume change of the phase also increases.
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When saturation pressure of water vapour increasesa)saturation temperature decreasesb)enthalpy of evaporation decreasesc)enthalpy of evaporation increasesd)specific volume change of phase increasesCorrect answer is option 'B'. Can you explain this answer?
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