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Relating Translational KE and T

The area unde...

Question

The area under the Maxwell distribution curve represents:

A

Total number of gas molecules

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B

Minimum fraction of molecules

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C

Maximum fraction of molecules

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D

Distribution of speeds

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Solution

The correct option is A
Total number of gas molecules

The area under the curve represents the total number of gas molecules.

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Similar questions

Q. Assertion :The area under the Maxwell distribution molecular speed curve remains same irrespective of the temperature of the gas. Reason: The fraction of molecules with most probable speed increases with the increase of temperature.

The gas molecules randomly move in all directions and collide with each other and with the wall of the container. It is difficult to determine the speed of an individual molecule but it has become possible to work out the distribution of molecules among different molecular speeds. This is known as Maxwell Boltzmann distribution.
Consider the following graph about Maxwell's distribution of speeds at two different temperatures

T_{1}

T_{2}

.

The curve has which of the following characteristics?
(i) It has symmetrical distribution of molecules against molecular velocity.
(ii) The area under the curve gives the total number of molecules.
(iii) The maxima of the curve shifts towards right as the temperature is raised.
(iv) The area under the curve is independent of temperature.
Select the correct statements from the codes given below.

Q. The following graph represents the Maxwell distribution curve for an ideal gas at two temperatures

T_{1}

T_{2}

. Which of the following option(s) is/are true?

Q. Assertion :On increasing the temperature, the height of the peak of the Maxwell distribution curve decreases. Reason: The fraction of molecules is very less at the higher velocities.

Q. Assertion :In maxwell distribution curve, with increase in temperature the fraction of molecules possessing most probable velocity increases. Reason: With increasing temperature molecular velocities increases.

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