Physics, 30.01.2021 01:10 jbdelarosa

The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?(1 point) The amount of water vapor in the air is 90% of what the air can hold.

The air holds little water vapor and is relatively dry.

The temperature must rise in order for air to become saturated with water vapor.

The dew point temperature is 90% of the air temperature. The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?(1 point)

The amount of water vapor in the air is 90% of what the air can hold.

The air holds little water vapor and is relatively dry.

The temperature must rise in order for air to become saturated with water vapor.

The dew point temperature is 90% of the air temperature.

Answers: 2

Show answers

Another question on Physics

Physics, 22.06.2019 05:30

Could someone . i have tried to solve myself but my calculation is off

Answers: 3

Answer

Physics, 22.06.2019 12:30

Consider a system with two masses that are moving away from each other. why will the kinetic energy differ if the frame of reference is a stationary observer or one of the masses?

Answers: 1

Answer

Physics, 22.06.2019 17:00

Air conditioners not only cool air, but dry it as well. suppose that a room in a home measures 5.0m×9.0m×2.4m . if the outdoor temperature is 30 ∘c and the vapor pressure of water in the air is 85 % of the vapor pressure of water at this temperature, what mass of water must be removed from the air each time the volume of air in the room is cycled through the air conditioner? the vapor pressure for water at 30 ∘c is 31.8 torr.

Answers: 3

Answer

Physics, 22.06.2019 18:00

Air enters a gas turbine with two stages of compression and two stages of expansion at 100 kpa and 17°c. this system uses a regenerator as well as reheating and intercooling – the intercooler returns the air to the inlet temperature. the pressure ratio across each compressor is 4 ; 300 kj/kg of heat are added to the air in each combustion chamber; and the regenerator operates perfectly while increasing the temperature of the cold air by 20°c. determine the system’s thermal efficiency. assume isentropic operations for all compressor and the turbine stages and use constant specific heats at room temperature. (0.378)

Answers: 3

Answer

You know the right answer?

The air temperature is 70 degrees, and the relative humidity is 90%. Which conclusion can be made?(1...

Questions