A mercury manometer measures a pressure of 200 mmHg. What is this pressure in atm?
Question
A mercury manometer measures a pressure of 200 mmHg. What is this pressure in atm?
Solution
To convert the pressure from mmHg to atm, we need to use the conversion factor that 1 atm is approximately equal to 760 mmHg.
Here are the steps to convert 200 mmHg to atm:
- Identify the given pressure: 200 mmHg.
- Identify the conversion factor: 1 atm = 760 mmHg.
- Set up the conversion so that the unwanted unit will cancel out. You can write this as: (200 mmHg) * (1 atm/760 mmHg).
- Do the math. When you multiply 200 by 1/760, you get approximately 0.263 atm.
So, the pressure of 200 mmHg is approximately equal to 0.263 atm.
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