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10
×
One mole of a gas sample is compressed to half of its original volume. Is the gas hotter at the end of an adiabatic or isothermal compression?
adiabatic compression
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10
×
What is a specially designed container which prevents all heat transfer between its contents and the surroundings?
Calorimeter, thermos flask
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5
×
Which types of Kinetic energy can a diatomic gas molecule have?
the molecules of a diatomic gas have translational and rotational kinetic energies.
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20
×
Why are we trying to save energy if total energy never changes?
What we are trying to save is not energy, but useful energy that can do work.
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20
×
A gas sample expands from initial volume to final volume once isobarically and once along an isotherm. Along which process does the gas do more work?
Along isobarically process do more work
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×
trap
No points!
Oops!
×
rocket
Go to first place!
Okay!
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gift
Win 10 points!
Okay!
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banana
Go to last place!
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thief
Give points!
5
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20
25
×
magnet
Take 25 points!
Okay!
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shark
Other team loses 25 points!
Okay!
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baam
Lose 5 points!
Oops!
10
×
Calculate average speed and RMS speed of three particles of speeds 10, 20, 30m/s.
20 m/s and 21.6 m/s
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20
×
Find the RMS velocity of oxygen molecules at room temperature. T=20 degree of C
478 m/s
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10
×
What are the two characteristic differences between vaporization and boiling?
evaporation is slower, occurs only from the surface of the liquid, does not produce bubbles, and leads to cooling. Boiling is faster,
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15
×
What is the work done on the gas during compression?
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10
×
What is the first law of thermodynamics in isothermal and adiabatic process?
dQ=W, W=-dU Q=0
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10
×
Identify type of process: reversible or irreversible: ‘Ice melts at room temperature, absorbing heat from the air’.
Water never freezes by itself at room temperature, to release heat energy and make room hotter.So it is irreversible process.
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banana
Go to last place!
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gift
Win 25 points!
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fairy
Take points!
5
10
15
20
25
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baam
Lose 15 points!
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20
×
what is the basic equation of kinetic theory of gases in terms of density of gas?
equation
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15
×
Th=700 degree of C, Tc=27 degree of C, find efficiency. of ideal heat engine.
69%
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