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AP Chemistry Gases — practice questions

Explore 22 free Gases questions in AP Chemistry Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Gases questions and exercises with answers

Showing questions 1–22 of 22.

Pressure is defined as the force exerted on a given:Read the answer and worked solution →The gas law relating volume and pressure at constant temperature is:Read the answer and worked solution →The gas law relating volume and temperature is:Read the answer and worked solution →The pressure exerted by each individual gas in a mixture is called its:Read the answer and worked solution →The escape of gas molecules through a tiny hole into a vacuum is called:Read the answer and worked solution →According to Avogadro's law, equal volumes of different gases at the same temperature and pressure contain the same number of:Read the answer and worked solution →The individual gas laws were eventually combined into a single equation known as the:Read the answer and worked solution →The ideal gas law is described as quite accurate at low pressures and:Read the answer and worked solution →An ideal gas is described as a:Read the answer and worked solution →The theory used alongside the ideal gas concept to explain the gas laws is:Read the answer and worked solution →In a closed environment, diffusion ultimately results in:Read the answer and worked solution →Dalton's law applies to a mixture of gases provided the gases:Read the answer and worked solution →Pressure being inversely proportional to area means that the same force on a smaller area gives:Read the answer and worked solution →Effusion differs from diffusion because effusion specifically involves passage through:Read the answer and worked solution →Avogadro's law implies that at fixed temperature and pressure a gas's volume depends on:Read the answer and worked solution →A sealed balloon is used to illustrate Charles's law because it holds:Read the answer and worked solution →The syringe illustration for Boyle's law holds the temperature at:Read the answer and worked solution →Match each gas law to its pairRead the answer and worked solution →Effusion or diffusion?Read the answer and worked solution →True or false: gasesRead the answer and worked solution →Which quantity is held fixed?Read the answer and worked solution →Complete the gas rulesRead the answer and worked solution →

Worked practice questions

Pressure is defined as the force exerted on a given:

  1. Area
  2. Volume
  3. Mass
  4. Length
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Correct answer: A. Area

1. Pressure describes how concentrated a force is. 2. In general, pressure is defined as the force exerted on a given area. 3. It is proportional to force and inversely proportional to area. 4. The same force spread over a larger area therefore gives a lower pressure. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 9 'Gases', sections 9.1-9.6_

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The gas law relating volume and pressure at constant temperature is:

  1. Boyle's law
  2. Charles's law
  3. Avogadro's law
  4. Dalton's law
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Correct answer: A. Boyle's law

1. Each named gas law holds two quantities fixed and relates the other two. 2. Volume and pressure at constant temperature is Boyle's law. 3. The illustration used is partially filling an airtight syringe with air at a constant 25 degrees Celsius. 4. Charles's law instead relates volume and temperature. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 9 'Gases', sections 9.1-9.6_

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The gas law relating volume and temperature is:

  1. Graham's law
  2. Charles's law
  3. Boyle's law
  4. Dalton's law
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Correct answer: B. Charles's law

1. The named laws are distinguished by which pair of quantities they link. 2. Volume and temperature is Charles's law. 3. The illustration used is a sealed balloon of air at atmospheric pressure. 4. Boyle's law instead links volume and pressure. _Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 9 'Gases', sections 9.1-9.6_

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