Under Pressure: Units and Causes

Define pressure, calculate it from force and area, and convert among pascals, atmospheres, torr, and mmHg

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QUESTION OF
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Views #: 192
Questions #: 6
Time: 10 minutes
Pass Score: 80.0%
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What Is Pressure?

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Which statement correctly describes gas pressure and its cause?

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Explanation

Calculate the Pressure

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If a force of 16.7 N is pressed against an area of 2.44 m², what is the pressure in pascals?

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Explanation

Convert the Pressure Units

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To complete the line match
  1. Click on an item in the first group
  2. Click on an item in the second group
  3. To delete a match, double click on a line

Pressure

2.443 atm
889 mmHg
1 torr

Equivalent

1.17 atm
133 Pa
1857 torr

Match each pressure to its correct equivalent.

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Explanation

Torr and Millimeters of Mercury

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How many millimeters of mercury are in 334 torr?

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Torr vs. mmHg

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True or False: One torr is essentially equal to one millimeter of mercury.

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Explanation

A Flawed Original Definition

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Why did the original definition of the 'atmosphere' as sea-level air pressure work poorly as a unit?

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Explanation

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0
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0 . EXP ÷ MR
± RND C = MC
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