Pressure Unit Conversion Problems

The video tutorial covers gas laws at level two, focusing on converting pressure units using dimensional analysis. It provides conversion factors for pressure units and demonstrates step-by-step conversions of kilopascals to atmospheres, atmospheres to millimeters of mercury, and torr to kilopascals. The tutorial emphasizes the use of significant figures and offers tips for efficient calculations.

What is the equivalent of 1 atmosphere in millimeters of mercury?

• 760 mmHg

• 101.3 mmHg

• 500 mmHg

• 1000 mmHg

How many kilopascals are equal to 1 atmosphere?

• 760 kPa

• 1 kPa

• 101.3 kPa

• 100 kPa

What is the first step in converting 72.6 kilopascals to atmospheres?

• Add 101.3

• Put kilopascals over one

• Divide by 101.3

• Multiply by 760

What is the result of converting 72.6 kilopascals to atmospheres?

• 0.717 atm

• 1.95 atm

• 101.3 atm

• 760 atm

When converting 1.95 atmospheres to millimeters of mercury, what number do you multiply by?

• 101.3

• 760

• 1

• 72.6

What is the final result of converting 1.95 atmospheres to millimeters of mercury?

• 101.3 mmHg

• 1482 mmHg

• 0.717 mmHg

• 760 mmHg

What is the first step in converting 687 torr to kilopascals?

• Multiply by 101.3

• Divide by 760

• Add 760

• Put torr over one

What is the conversion factor from torr to kilopascals?

• 1 to 101.3

• 760 to 1

• 760 to 101.3

• 101.3 to 760

What is the result of converting 687 torr to kilopascals?

• 91.6 kPa

• 101.3 kPa

• 760 kPa

• 0.717 kPa

How many significant figures should be used in the final answer when converting 687 torr to kilopascals?

• Three

• One

• Two

• Four