Which of the following statements regarding instruments for measuring the pressures of gases is NOT correct?
A) A barometer is most often used to measure the pressures of samples of gas.
B) Open-end manometers are particularly useful for measuring gas pressures that are higher than atmospheric pressure.
C) Pressure sensors usually employ flexible diaphragms that distort based on changes in pressure.
D) The pressure of a gas connected to a closed-end mercury manometer is directly measured by the height of the mercury column observed.
E) The change in the height of the mercury column observed when a sample of gas is connected to an open-end manometer is directly related to the difference in the gas pressure and atmospheric pressure.
Correct Answer:
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