Question

relative humidity is​

Answer 1

Answer:

Relative humidity is the ratio of the partial pressure of water vapour to the equilibrium vapour pressure of water at a given temperature .

Explanation:

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Answer 2

Answer:

Relative humidity is the ratio of the amount house water vapour in the air to the amount the air can hold at that temperature or capacity.

Explanation:

Humidity :

The amount of water vapour present in the air varies from time to time and place to place.

The amount of water vapour present in the air varies from time to time and place to place.The term humidity refers to the amount of water vapour present in the air.

Relative humidity :

• It refers to the water vapour present in the air as compared to the maximum amount of water the air can hold at that temperature.

• Relative Humidity can be defined as the ratio between the actual amount of water vapour present in the air and the maximum amount of water the air can hold at that temperature.
• It is always expressed as a percentage
• Relative humidity = The actual amount of water vapour present in the air / The maximum amount of water vapour that can hold at that temperature
• For example, If the relative humidity is 25% it means that the humidity is not very high.The Air Is holding only a quarter of its capacity to hold water vapour at that temperature.
• The Standard charts are available that give the exact percentage of water vapour that can hold at different temperature.
• As the rate of evaporation is closely related with the relative humidity of the air. Relative Humidity is the ratio of the amount of water vapour in the add to the amount the air can hold at the temperature of capacity. Since the moisture holding capacity of air at a given temperature is limited , dry air evaporates more water than moist air. Thus, Evaporation is more in summer midday than in winter at night.