Gen.chem. Flashcards
What is Boyle’s Law?
Boyle’s Law states that the pressure of a gas at constant temperature is inversely proportional to its volume.
How does pressure affect the volume of a gas according to Boyle’s Law?
- As the pressure of a gas increases at constant temperature, its volume decreases.
- As the pressure of a gas decreases at constant temperature, its volume increases.
What are the four physical properties that describe a gas?
- Volume
- Pressure
- Temperature
- Amount
What happens to gas volume when external pressure is increased?
The volume of the gas decreases.
What happens to gas volume when external pressure is decreased?
The volume of the gas increases.
What is the mathematical relationship expressed in Equation 10.2.1?
The pressure of a gas is inversely proportional to its volume.
What does Equation 10.2.2 represent in Boyle’s Law?
The product of pressure and volume is constant (P_i * V_i = P_f * V_f).
What is a P-V diagram?
A graph that represents the changes in pressure of a gas with its volume, provided that other parameters are constant.
Fill in the blank: Boyle’s Law only applies if the _______ and the amount of gas remain constant.
temperature
What is the proportionality constant in Boyle’s Law dependent on?
Temperature and amount of gas.
True or False: Boyle’s Law applies if the temperature of the gas remains constant.
True
True or False: The pressure of a gas will increase if transferred to a larger container while keeping the temperature and amount of gas constant.
False
What is the initial pressure (P_i) and volume (V_i) of a gas if its final volume (V_f) is 20.00 L and the initial pressure is 5.00 atm?
P_i = 5.00 atm, V_i = 10.00 L
What is the final pressure (P_f) if a gas is transferred from a volume of 10.00 L at 5.00 atm to a volume of 20.00 L?
P_f = 2.50 atm
What is the formula for Boyle’s Law?
P_i * V_i = P_f * V_f
True or False: The initial and final pressure units should always match before using Boyle’s Law for computation.
True
What is the final pressure of a gas that had an initial pressure of 0.75 bar and was moved to a 2.00 L tank?
Final pressure = 0.188 bar
What happens to the gas inside a balloon when you increase its pressure?
The gas compresses and reduces its volume.
What happens to the gas inside a balloon when you decrease its pressure?
The gas expands and increases its volume.
What is Boyle’s Law?
The principle that describes the relationship between the pressure and volume of a gas at constant temperature.
Under what condition does Boyle’s Law not apply?
If there is an inert mixture of gases.
If a gas occupies a volume of 0.33 L at a pressure of 0.55 atm, what is its final pressure when the volume decreases to 0.10 L?
To be calculated using Boyle’s Law.
What is the final volume of a gas with 450 mmHg if its initial pressure and volume are 300 mmHg and 300 mL, respectively?
To be calculated using Boyle’s Law.
What will be the pressure of a gas in a 20.0 L container if it originally had a pressure of 16.2 bar and a volume of 50.0 L?
To be calculated using Boyle’s Law.
Compute the initial volume of a gas with a final pressure of 0.21 atm, a final volume of 250 mL, and an initial pressure of 1.00 atm.
To be calculated using Boyle’s Law.
What is the initial volume of a gas with 800 torr if its pressure is 760 torr and the volume is 150 mL?
To be calculated using Boyle’s Law.
If argon gas with a pressure of 3.00 bar is in a 0.500 L container, what will its pressure be if released in a 4.00 L chamber?
To be calculated using Boyle’s Law.
What is the initial pressure of an air mixture if it has a final pressure of 2.75 bar when stored in a 600 mL container and was originally stored in a 150 mL container?
To be calculated using Boyle’s Law.
Calculate the final volume of an air mixture with an initial pressure of 500 torr, an initial volume of 100 cm³, and a final pressure of 800 torr.
To be calculated using Boyle’s Law.
What will be the pressure of a reaction producing CO₂ in a 250 mL flask if it produced a pressure of 1.25 bar in a 500 mL flask?
To be calculated using Boyle’s Law.
If a gas in a 5.00 L container has a pressure of 920 torr, what will its pressure be in an 8.00 L container?
To be calculated using Boyle’s Law.
What is the final pressure of a 100-cm³ piston experiencing 10,000 kPa of pressure when the volume expands to 1,030 cm³?
To be calculated using Boyle’s Law.
Compute the final pressure if an elastic container with an initial pressure of 1.00 atm and a volume of 1.50 L expands isothermally to 6.00 L.
To be calculated using Boyle’s Law.
What is the final pressure of an evacuated container with 200 kPa of pressure and 4.00 L of volume when it expands to 20.00 L?
To be calculated using Boyle’s Law.
What would be the pressure of a gas loaded in a 40.00 L nitrogen tank at 13.8 bar if loaded into a 33.00 L tank?
To be calculated using Boyle’s Law.
If a 1.75-m³ balloon is loaded with 1.05 atm of air, what would its final pressure be if it shrinks to 1.50 m³?
To be calculated using Boyle’s Law.
How would the volume of a gas change if its pressure doubles?
The volume would halve.
How would the pressure change if the gas was transferred to a container one-fourth the volume of the original container?
The pressure would quadruple.
By how much should a 1.00-L container be compressed to reduce the pressure from 10.00 atm to standard pressure conditions?
To be calculated using Boyle’s Law.
A sample of ethanol gas occupies 350 mL at standard pressure conditions. What volume will it occupy if the pressure is reduced to 740 torr?
To be calculated using Boyle’s Law.
A sample of a pure, unknown gas has a pressure of 10.2 torr and occupies a volume of 42.5 mL. Would it condense at a pressure of 20.0 torr and a volume of 30.00 mL?
It would condense.
What is the final answer for the problem about a gas occupying a volume of 0.33 L at a pressure of 0.55 atm?
100.602
What is the final answer for the problem about the final volume of a gas with 450 mmHg?
250.0 torr
What is the final answer for the problem about a tank of gas with a pressure of 16.2 bar?
9 869.23 mL
