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A rigid tank of air is cooled (temperature decreased). The volume has to remain constant because it is a rigid tank. The air pressure in the rigid tank
A. Increases B. Decreases C. Stays the same

Respuesta :

If the temperature in the tank is decreased this would imply that the kinetic energy of molecule decreases because of the ideal gas law:
PV= nRT (Since Pressure is directly proportional to Temperature).
So the answer is B.The air pressure in the rigid tank decreases.
Hope this helps you.

The air pressure in the rigid tank Decreases.

Explanation:

A rigid tank is said to be a region where volume is always considered as a constant. During the process of cooling the rigid tank where the temperature is said to be decreased, the effect of air pressure in the tank also decreases.

Because, PV = RT, where P is the pressure, T is temperature, R is constant, V is the volume. Hence pressure is directly proportional to temperature.

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