Pressure Conversion and Unit Analysis

The video tutorial explains how to convert 520 mm of mercury to atmospheres using a conversion factor. It begins by introducing the conversion process and the necessary conversion factor: 1 atmosphere equals 760 mm of mercury. The tutorial then demonstrates the calculation step-by-step, ensuring that units are correctly canceled out. The final result of the conversion is 0.684 atmospheres, confirming the setup was correct.

What is the initial pressure value that needs to be converted?

• 0.684 atmospheres

• 760 mm of mercury

• 520 mm of mercury

• 1 atmosphere

Which conversion factor is used to convert mm of mercury to atmospheres?

• 1 atmosphere = 1 mm of mercury

• 1 atmosphere = 760 mm of mercury

• 1 atmosphere = 0.684 mm of mercury

• 1 atmosphere = 520 mm of mercury

What is the purpose of placing 760 mm of mercury in the denominator during the conversion?

• To divide the units

• To add the units

• To cancel out the units

• To multiply the units

What happens to the units of mm of mercury during the conversion process?

• They remain unchanged

• They are added

• They are canceled out

• They are multiplied

What is the final value of 520 mm of mercury when converted to atmospheres?

• 0.520 atmospheres

• 760 atmospheres

• 0.684 atmospheres

• 1.000 atmospheres

Why is it important to ensure that only atmospheres are left as the final unit?

• To verify the conversion was set up correctly

• To ensure the units are added

• To make the calculation easier

• To avoid using a calculator