Q: What is the formula for calculating pressure?

$$P = \frac{\text{force}}{\text{area}}$$

Q: Which of the following is the correct conversion factor between Torr and atm?

$$1 \text{ atm} = 760 \text{ Torr}$$

Q: Which of the following is the correct definition of 1 atm?

$$1 \text{ atm} = 101325 \text{ Pa}$$

Question 1

Which SI unit is used to measure pressure, and who is it named after?

Accepted Answer

Pa, named after Blaise Pascal

Question 2

What is the formula for calculating pressure?

Accepted Answer

$$P = \frac{	ext{force}}{	ext{area}}$$

Question 3

If the same amount of gas molecules is transferred from a 5.0 L container to a 10.0 L container, what happens to the pressure?

Accepted Answer

It will decrease

Question 4

Which of the following is NOT a commonly used unit for pressure?

Accepted Answer

Joule

Question 5

Convert a pressure of 24.9 inHg to atm. (Given: $$1 	ext{ atm} = 29.92 	ext{ inHg})$$

Accepted Answer

$$0.832 	ext{ atm}$$

Question 6

Which pressure unit is equivalent to $$101325 	ext{ Pa}$$?

Accepted Answer

1 atm

Question 7

A pressure reading of $$760 	ext{ mmHg} is $$equivalent to how many atm?

Accepted Answer

$$1 	ext{ atm}$$

Question 8

Which of the following best describes the relationship between pressure and volume for a fixed amount of gas at constant temperature?

Accepted Answer

Pressure decreases as volume increases

Question 9

A patient’s blood pressure is measured as $$120 	ext{ mmHg}. $$What is this pressure in atm? (Given: $$1 	ext{ atm} = 760 	ext{ mmHg})$$

Accepted Answer

$$0.158 	ext{ atm}$$

Question 10

Which of the following is the correct conversion factor between Torr and atm?

Accepted Answer

$$1 	ext{ atm} = 760 	ext{ Torr}$$

Question 11

A tire is inflated to a pressure of $$32 	ext{ psi}. $$Convert this pressure to atm. (Given: $$1 	ext{ atm} = 14.696 	ext{ psi})$$

Accepted Answer

$$2.18 	ext{ atm}$$

Question 12

Which of the following statements about pressure is TRUE?

Accepted Answer

Pressure is the force applied over a given area

Question 13

A laboratory experiment requires a pressure of $$0.500 	ext{ atm}. $$What is this pressure in mmHg?

Accepted Answer

$$380 	ext{ mmHg}$$

Question 14

Which pressure unit is most commonly used in medical settings to measure blood pressure?

Accepted Answer

mmHg

Question 15

A scuba tank contains air at $$3000 	ext{ psi}. $$What is this pressure in atm? (Given: $$1 	ext{ atm} = 14.696 	ext{ psi})$$

Accepted Answer

$$204.2 	ext{ atm}$$

Question 16

Which of the following is a correct statement about the relationship between force, area, and pressure?

Accepted Answer

Pressure increases as force increases, if area is constant

Question 17

A weather report states the atmospheric pressure is $$101325 	ext{ Pa}. $$What is this pressure in mmHg? (Given: $$1 	ext{ atm} = 101325 	ext{ Pa} = 760 	ext{ mmHg})$$

Accepted Answer

$$760 	ext{ mmHg}$$

Question 18

Which of the following is the correct definition of 1 atm?

Accepted Answer

$$1 	ext{ atm} = 101325 	ext{ Pa}$$

Question 19

A pressure gauge reads $$500 	ext{ Torr}. $$What is this pressure in atm?

Accepted Answer

$$0.658 	ext{ atm}$$

Question 20

Which of the following is a real-world application of pressure conversion?

Accepted Answer

Converting atmospheric pressure to mmHg for medical blood pressure readings

Pressure: Units, Formulas, and Conversions in GOB Chemistry

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