What is relative humidity of a sample of air that has a dry bulb temperature of 20 and a wet bulb temperature of 11

Relative humidity of a sample is 31%

Explanation:

Difference in temperature = dry bulb - wet bulb

= 20 -11

= 9

Look at the table for :

= 9 and T(dry) = 20

Relative Humidity : It is ratio of actual mass of water vapour in a given moist air to the mass of water vapour in the same volume of saturated air at the same temperature and pressure. It is written as RH.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

warm front forms when a moist, warm air mass slides up and over a cold air mass. as the warm air mass rises, it condenses into a broad area of clouds. a warm front brings gentle rain or light snow, followed by warmer, milder weather.

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