Question

3. When the water level is higher outside the flask than inside, is the gas pressure inside the flask higher, lower or the same as atmospheric pressure? (Take your time to think about this. Perhaps think of what it feels like to be 10 feet under water.)

Answer 1

Answer:

The gas pressure inside the flask is higher than outside the flask ornthe atmospheric pressure.

Explanation:

Given a U-tube manometer with water in between each arm of U-tube. One end is open to the atmosphere while one end is sealed to a flask filled with a gas. The water in the open end of the tube is experiencing a pressure equal to the atmospheric pressure whereas the water at the end sealed of to the flask is experiencing pressure due to the gas in the flask.

If the water level in both arms of the tube are equal, then the pressure due to the gas is equal to atmospheric pressure.

If the water level in the arm sealed to the gas is higher than that of the open end, The gas pressure is less than the atmospheric pressure.

If the water level in the arm sealed to the flask is lower than the open end, the pressure due to the gas is higher than atmospheric pressure.

From the question, when the water level is higher outside the flask than inside, then the gas pressure inside the flask is higher than the atmospheric pressure.