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IMU CET Gases — practice questions

Explore 97 free Gases questions in IMU CET 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 1–30 of 97.

Match each gas law to what it fixesRead the answer and worked solution →Pair each name with its gas relationRead the answer and worked solution →Complete the ideal gas lawRead the answer and worked solution →Ideal or real gas behaviour?Read the answer and worked solution →Which pressure is bigger?Read the answer and worked solution →Which gas effuses faster?Read the answer and worked solution →True or false: gas behaviourRead the answer and worked solution →Order the molar mass experimentRead the answer and worked solution →Tap what belongs in each groupRead the answer and worked solution →Pressure is defined as which of these quantities?Read the answer and worked solution →Which unit of pressure is the SI unit?Read the answer and worked solution →One atmosphere of pressure is equal to how many pascals?Read the answer and worked solution →A weather report gives a pressure of 1 bar. What is this pressure in kilopascals?Read the answer and worked solution →The pressure unit called the torr is named after which scientist?Read the answer and worked solution →A weather station reports 29.2 in. Hg. Taking 1 in. as 25.4 mm and 1 mm Hg as 1 torr, what is this pressure in torr?Read the answer and worked solution →A pressure of 742 torr is equal to how many atmospheres?Read the answer and worked solution →A barometer in Kansas City reads 740 torr. Using 760 torr = 101.325 kPa, what is this pressure in kilopascals?Read the answer and worked solution →Which instrument is used to measure atmospheric pressure?Read the answer and worked solution →Why is mercury preferred over water as the liquid in a barometer?Read the answer and worked solution →Normal atmospheric pressure supports a column of water of about what height?Read the answer and worked solution →The hydrostatic pressure of a fluid column depends on which set of quantities?Read the answer and worked solution →A closed-end mercury manometer shows a difference in levels of 26.4 cm. What is the gas pressure in pascals?Read the answer and worked solution →In an open-end manometer, the difference between the two liquid levels measures which quantity?Read the answer and worked solution →Blood pressure readings from a sphygmomanometer are reported in which unit?Read the answer and worked solution →Which pressure in the cardiac cycle is the one at which blood flow first begins past the cuff?Read the answer and worked solution →Earth's atmosphere is roughly what composition by the two main gases?Read the answer and worked solution →Which layer of the atmosphere extends up to about 12 km and holds roughly 80% of its mass?Read the answer and worked solution →What causes a gas to exert pressure on the surface of an object?Read the answer and worked solution →For a fixed amount of gas held at constant volume, pressure is directly proportional to which quantity?Read the answer and worked solution →A nitrogen sample at 27 degrees C exerts 600 torr in a rigid sealed container. What pressure does it exert when cooled to -73 degrees C?Read the answer and worked solution →

Worked practice questions

Match each gas law to what it fixes

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Matching pairs
  1. Left
    Boyle's law
    Right
    P times V stays fixed at set T and n
  2. Left
    Charles's law
    Right
    V over T stays fixed at set P and n
  3. Left
    Amontons's law
    Right
    P over T stays fixed at set V and n
  4. Left
    Avogadro's law
    Right
    V over n stays fixed at set P and T
  5. Left
    Dalton's law
    Right
    Total pressure sums the partial ones
  6. Left
    Graham's law
    Right
    Effusion rate drops as molar mass rises
Instructions
Tap a law, then tap the relation that goes with it.
_Source: OpenStax Chemistry, section 9.2 Relating Pressure, Volume, Amount, and Temperature: The Ideal Gas Law_

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Pair each name with its gas relation

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Matching pairs
  1. A
    Boyle
    B
    P and V inverse
  2. A
    Charles
    B
    V and T direct
  3. A
    Amontons
    B
    P and T direct
  4. A
    Avogadro
    B
    V and n direct
  5. A
    Graham
    B
    Effusion rates
  6. A
    Dalton
    B
    Partial pressures
Instructions
Flip two cards at a time to match a name with the relation it describes.
_Source: OpenStax Chemistry, section 9.2 Relating Pressure, Volume, Amount, and Temperature: The Ideal Gas Law_

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Complete the ideal gas law

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Missing parts
  1. Answer
    kelvin
    Choices
    1. kelvin
    2. degrees celsius
    3. degrees fahrenheit
  2. Answer
    0.0821 L atm/mol K
    Choices
    1. 8.314 L atm/mol K
    2. 760 L atm/mol K
    3. 0.0821 L atm/mol K
  3. Answer
    22.4 L
    Choices
    1. 1.00 L
    2. 22.4 L
    3. 6.02 L
Complete the statement
In PV = nRT the temperature T must be read in {0}, and R is {1} when pressure is in atmospheres. One mole at 273.15 K and 1 atm then fills about {2}.
Instructions
Tap the right option for each blank.
_Source: OpenStax Chemistry, section 9.2 Relating Pressure, Volume, Amount, and Temperature: The Ideal Gas Law_

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