Concept explainers
(a)
Interpretation:
The following equation should be derived.
Concept Introduction:
The energy which is linked with the motion of a body is known as kinetic energy. According to kinetic theory of gases, the average kinetic energy of a gas is calculated by following expression:
Where,
m = molecular mass and u = average velocity
Another expression of average kinetic energy is:
Where, R = universal gas constant and NA =
Average kinetic energy depends upon the temperature.
(b)
Interpretation:
The following equation should be derived.
Concept Introduction:
The expression of root mean square velocity is:
From above expression, the relationship between molar mass and average velocity of gas is:
Average velocity is inversely proportional to the square root of molar mass.
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Principles of General Chemistry
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