Gases


What is the relative rate of effusion of CO and CO2?
A. CO is 1.25 times faster than CO2 B. CO is 3.75 times faster than CO2
C. CO is 1.25 times faster than CO D. Both diffuse at the same rate
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A
The weakest (in strength) of the following intermolecular forces is
A. Hydrogen bonding B. Vander Waals force
C. Forces among the polar molecules D. Ionic bond
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B

Which of the following statements is true about plasma
A. It may be the first state of matter B. It is not a phase transition
C. It is a conductor of electricity D. All of the above
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D

Under what conditions the gases deviate from the ideal behavior?
A. High temperature B. Low temperature
C. High pressure D. b and c
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D

At constant temperature the pressure of an ideal gas is doubled its density becomes
A. Half B. Double
C. Same D. None
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B
The diffusion of gases at absolute zero will be
A. Unchanged B. Slightly decreased
C. Slightly increased D. Zero
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D
Critical temperature for different gases is different and depends upon
A. Size of molecule B. Shape of molecule
C. Intermolecular attractions D. All of the above
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D
What is the abundant form of matter on earth?
A. Gas B. Liquid
C. Solid D. Plasma
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C
Which state of matter has the lowest density?
A. Gas B. Liquid
C. Solid D. Plasma
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A

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