Ideal gases
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Questions and Answers

What is the characteristic of particles in an ideal gas?

  • They have no mass and occupy no volume
  • They have a definite volume
  • They have both mass and volume
  • They have a mass but occupy no volume (correct)
  • What is the unit of measurement for the number of particles in a gas?

  • Cubic meters
  • Kelvins
  • Liters
  • Moles (correct)
  • What is the temperature scale used by scientists for calculations?

  • Fahrenheit
  • Rankine
  • Degrees Celsius
  • Kelvins (correct)
  • What is the force exerted by gas particles on the container walls?

    <p>Pressure</p> Signup and view all the answers

    What is the accepted SI unit for gas pressure?

    <p>Pascal</p> Signup and view all the answers

    What is the definition of pressure?

    <p>Force divided by area</p> Signup and view all the answers

    What happens to the volume available to the gas when more gas particles are added to the cylinder?

    <p>The volume increases</p> Signup and view all the answers

    Why does the piston rise when more gas particles are added to the cylinder?

    <p>Due to the greater force from collisions against the walls of the container</p> Signup and view all the answers

    What is the relationship between the number of gas particles and volume according to Avogadro's Law?

    <p>The volume and the number of gas particles are directly proportional</p> Signup and view all the answers

    What happens to the internal pressure when the piston rises?

    <p>It decreases</p> Signup and view all the answers

    What happens to the pressure of a gas when its volume is decreased, while keeping the temperature and number of gas particles constant?

    <p>It increases</p> Signup and view all the answers

    Why does the volume of your lungs increase when you breathe in?

    <p>Due to the expansion of the chest</p> Signup and view all the answers

    What is the relationship between the pressure and volume of an ideal gas, if the temperature and number of gas particles are constant?

    <p>Inversely proportional</p> Signup and view all the answers

    What is the purpose of the valve on the left of the apparatus?

    <p>To add or remove gas particles from the cylinder</p> Signup and view all the answers

    What happens to the pressure of a gas when its volume is doubled, while keeping the temperature and number of gas particles constant?

    <p>It decreases to one-half its original value</p> Signup and view all the answers

    What is the statement that describes the inverse relationship between the pressure and volume of an ideal gas?

    <p>Boyle's Law</p> Signup and view all the answers

    What happens to the volume of a gas when its pressure is increased, while keeping the temperature and number of gas particles constant?

    <p>It decreases</p> Signup and view all the answers

    Do real gases follow the exact mathematical relationship between pressure and volume described by Boyle's Law?

    <p>No, they deviate somewhat</p> Signup and view all the answers

    Which equation is commonly memorized and written?

    <p>PV = nRT</p> Signup and view all the answers

    What is the purpose of rearranging the ideal gas equation to isolate R?

    <p>To show the relationship between PV and nT</p> Signup and view all the answers

    What does the ratio PV/nT always remain the same for?

    <p>For ideal gases, regardless of changes in their properties</p> Signup and view all the answers

    What is the purpose of the expanded form of the ideal gas equation?

    <p>To find the mass of the gas in grams</p> Signup and view all the answers

    What are the units of the standard gas containers used to fill luminous tubes?

    <p>Liters (L)</p> Signup and view all the answers

    At what temperature and pressure are the standard gas containers filled?

    <p>22 °C and 101 kPa</p> Signup and view all the answers

    What is the initial pressure of the gas in the standard container?

    <p>101 kPa</p> Signup and view all the answers

    What is the final volume of the gas when it exerts a pressure of 1.3 kPa at 19 °C?

    <p>Cannot be determined with the given information</p> Signup and view all the answers

    Which law can be used to find the final volume of the balloon when the pressure is reduced from 3 atmospheres to 0.5 atmospheres?

    <p>Boyle's law</p> Signup and view all the answers

    What is the final volume of the balloon when the pressure is reduced from 3 atmospheres to 0.5 atmospheres?

    <p>12 L</p> Signup and view all the answers

    What is the volume of the gas when it is compressed from 2.00 L to 1.00 L?

    <p>1.00 L</p> Signup and view all the answers

    What is the purpose of converting the temperature from Celsius to Kelvin in the problem?

    <p>To use the ideal gas laws</p> Signup and view all the answers

    The ideal gas equation is often written in the form PV = nRT.

    <p>True</p> Signup and view all the answers

    The ratio of PV/nT always changes when the properties of an ideal gas change.

    <p>False</p> Signup and view all the answers

    The expanded form of the ideal gas equation uses moles (n) instead of mass in grams (g) divided by molar mass (M).

    <p>False</p> Signup and view all the answers

    The standard gas containers used to fill luminous tubes have a volume of 2.0 L.

    <p>False</p> Signup and view all the answers

    Neon gas in luminous tubes radiates blue light.

    <p>False</p> Signup and view all the answers

    R is a constant that varies depending on the pressure unit used.

    <p>False</p> Signup and view all the answers

    The ideal gas equation is derived from the equation of state for real gases.

    <p>False</p> Signup and view all the answers

    The ideal gas equation can be used to calculate changes in the properties of a real gas.

    <p>False</p> Signup and view all the answers

    The temperature of the neon gas in the standard containers is 20 °C.

    <p>False</p> Signup and view all the answers

    The pressure of the neon gas in the standard containers is 100 kPa.

    <p>False</p> Signup and view all the answers

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