Gas Laws Worksheet #1 - Flashcards
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Questions and Answers

A gas sample contained in a cylinder equipped with a movable piston occupied 300.0 mL at a pressure of 2.00 atm. What would be the final pressure if the volume were increased to 500.0 mL at constant temperature?

1.2 atm

A 50.00 L sample of gas collected in the upper atmosphere at a pressure of 18.30 torr is compressed into a 0.1500 L container at the same temperature. What is the final pressure?

6,100 torr

A balloon contains 1.50 L of air at 1.00 atm. It is taken underwater to a depth at which the pressure is 3.00 atm. What is the new volume of the balloon assuming the temperature remains constant?

0.5 L

A sample of krypton gas occupies 75.0 mL at 0.400 atm. If the temperature remains constant, what volume would the krypton occupy at 4.00 atm?

<p>7.5 mL</p> Signup and view all the answers

Several balloons are inflated with helium to a volume of 0.75 L at 27°C. If the temperature drops to 22°C, what would be the volume of the balloon when found, assuming no helium has escaped?

<p>0.7375 L or 0.74 L</p> Signup and view all the answers

A weather balloon is filled to a volume of 150.0 L when the temperature is 10.0°C. What would be the volume of the balloon after it rises to an altitude where the temperature is -8.00°C?

<p>140.459364 L or 140.5 L</p> Signup and view all the answers

A fixed quantity of gas at 23.0°C has a volume of 10.3 L. What will the volume be if the temperature is increased to 145°C while the pressure remains constant?

<p>14.5452703 L or 14.5 L</p> Signup and view all the answers

A sample of gas occupies a volume of 7.50 L at 28.0°C. At what temperature does the volume become 4.00 L if the pressure is kept constant?

<p>-112.47°C</p> Signup and view all the answers

A gas occupies a volume of 100.0 mL at 27.0°C. At what temperature would the volume be 50.0 mL?

<p>-123°C</p> Signup and view all the answers

A sample of gas has a pressure of 100.0 torr at 27.0°C. Calculate the pressure if the temperature is changed to 127°C while the volume remains constant.

<p>133.333333 torr or 133.3 torr</p> Signup and view all the answers

A gas initially at STP is changed to 248 K. What is the final pressure of the gas?

<p>0.908 atm</p> Signup and view all the answers

A gas occupies a volume of 50.0 mL at 27°C and 630 mmHg. At what temperature, in °C, would the pressure be 101.3 kPa if the volume remains constant?

<p>-224.76°C or 48.2°K</p> Signup and view all the answers

A sample of gas has a pressure of 700 mmHg at 30.0°C. At what temperature would the pressure be 600 mmHg if the volume remains constant?

<p>-13.3°C or 259.7°K</p> Signup and view all the answers

A sample of gas is initially at STP. What would the pressure be if the temperature were increased to 819°C?

<p>4 atm</p> Signup and view all the answers

What is the definition of Moles and Volume Law?

Signup and view all the answers

What is the definition of Combined Gas Law?

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Study Notes

Boyle's Law

  • Boyle's Law relates pressure and volume at constant temperature; pressure increases as volume decreases.
  • Initial conditions: 300.0 mL at 2.00 atm leads to a final pressure of 1.2 atm when volume increases to 500.0 mL.
  • Compressing a 50.00 L gas sample from 18.30 torr to 0.1500 L results in a final pressure of 6,100 torr.
  • A balloon's volume of 1.50 L at 1.00 atm decreases to 0.5 L when submerged to 3.00 atm.
  • For krypton gas, a volume of 75.0 mL at 0.400 atm reduces to 7.5 mL at 4.00 atm.

Charles' Law

  • Charles' Law connects temperature and volume at constant pressure; volume increases with temperature.
  • A helium balloon inflated to 0.75 L at 27°C decreases to approximately 0.7375 L at 22°C.
  • A weather balloon rises from 150.0 L at 10.0°C to about 140.5 L at -8.00°C.
  • A gas at 10.3 L and 23.0°C expands to 14.5 L when heated to 145°C.
  • Volume of 7.50 L at 28.0°C contracts to 4.00 L at -112.47°C with constant pressure.
  • A gas at 100.0 mL and 27.0°C decreases to 50.0 mL at -123°C.

Gay-Lussac's Law

  • Gay-Lussac's Law relates pressure and temperature at constant volume; pressure increases with temperature.
  • A gas with a starting pressure of 100.0 torr and 27.0°C has a final pressure of approximately 133.3 torr at 127°C.
  • A gas at STP converted to 248 K shows a final pressure of 0.908 atm.
  • A gas at 50.0 mL and 27°C, under 630 mmHg, drops to -224.76°C to reach 101.3 kPa.
  • A gas with an initial pressure of 700 mmHg at 30.0°C drops to -13.3°C to have a final pressure of 600 mmHg.
  • For a gas at STP with a temperature increase to 819°C, the pressure rises to 4 atm.

Combined Gas Law

  • The Combined Gas Law encompasses Boyle's, Charles', and Gay-Lussac's laws, relating pressure, volume, and temperature together.
  • Used to solve problems where more than one variable changes.
  • Essential for determining how multiple conditions affect gas behavior in various scenarios.

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Test your knowledge of key gas laws with this worksheet focused on Boyle's, Charles', and Gay-Lussac's laws. These flashcards will help reinforce your understanding of how gas volume and pressure relate under changing conditions. Perfect for students studying gas laws in chemistry.

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