A Flask Containing Helium Gas Is Connected to an Open-Ended

question 65

Multiple Choice

A flask containing helium gas is connected to an open-ended mercury manometer. The open end is exposed to the atmosphere, where the prevailing pressure is 752 torr. The mercury level in the open arm is 26 mm above that in the arm connected to the flask of helium. What is the helium pressure, in torr?

• A) -26 torr
• B) 26 torr
• C) 726 torr
• D) 778 torr
• E) none of the above

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Definitions:

Data Collection Method

Techniques and tools used to gather information for analysis in research, ranging from surveys and interviews to observation and documentation.

Expectancy Theory

A psychological theory proposing that an individual's motivation is related to their expectation of success, the value of that success, and the perceived likelihood that effort leads to achievement.

Instrumentality

A belief or expectation that a particular level of performance will lead to specific outcomes or rewards.

Utility Reactions

The perceived usefulness and the positive or negative responses of individuals towards a particular intervention or program.