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Select the correct statement (s).

  • a)
    Kinetic energy is zero at 0°C

  • b)
    Root mean square velocity of CO2 gas at 298 

  • c)
    Distribution of molecules is very small when u → 0 or u → ∞

  • d)
    Most probable velocity has maximum value out of all the molecular velocities

Correct answer is option 'B,C'. Can you explain this answer?
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Maxwell Distribution Function In a given mass of gas, the velocities of all molecules are not the same, even when bulk parameters like pressure, volume and temperature are fixed. Collisions change the direction and the speed of molecules. However in a state of equilibrium, the distribution of speeds is constant or fixed. Distributions are very important and useful when dealing with systems containing large number of objects. As an example consider the ages of different persons in a city. It is not feasible to deal with the age of each individual. We can divide the people into groups: children up to age 20 years, adults between ages of 20 and 60, old people above 60. If we want more detailed information we can choose smaller intervals, 0–1, 1–2,..., 99– 100 of age groups. When the size of the interval becomes smaller, say half year, the number of persons in the interval will also reduce, roughly half the original number in the one year interval. The number of persons dN(x) in the age interval x and x + dx is proportional to dx or dN(x) = nx dx. We have used nx to denote the number of persons at the value of x. In a similar way the molecular speed distribution gives the number of molecules between the speeds v and v + dv. dN(v) = 4p N a3 e–bv2v2dv = nvdv. This is called Maxwell distribution.The plot of nv against v is shown in the figure. The fraction of the molecules with speeds v and v + dv is equal to the area of the strip shown. The average of any quantity like v2 is defined by the integralwhich agrees with the result derived from more elementary considerations.Q. From the given graph determine the number of molecules at zero speed.

Maxwell Distribution Function In a given mass of gas, the velocities of all molecules are not the same, even when bulk parameters like pressure, volume and temperature are fixed. Collisions change the direction and the speed of molecules. However in a state of equilibrium, the distribution of speeds is constant or fixed. Distributions are very important and useful when dealing with systems containing large number of objects. As an example consider the ages of different persons in a city. It is not feasible to deal with the age of each individual. We can divide the people into groups: children up to age 20 years, adults between ages of 20 and 60, old people above 60. If we want more detailed information we can choose smaller intervals, 0–1, 1–2,..., 99– 100 of age groups. When the size of the interval becomes smaller, say half year, the number of persons in the interval will also reduce, roughly half the original number in the one year interval. The number of persons dN(x) in the age interval x and x + dx is proportional to dx or dN(x) = nx dx. We have used nx to denote the number of persons at the value of x. In a similar way the molecular speed distribution gives the number of molecules between the speeds v and v + dv. dN(v) = 4p N a3 e–bv2v2dv = nvdv. This is called Maxwell distribution.The plot of nv against v is shown in the figure. The fraction of the molecules with speeds v and v + dv is equal to the area of the strip shown. The average of any quantity like v2 is defined by the integralwhich agrees with the result derived from more elementary considerations.Q. The molecular speed distribution of number of molecules between the speeds v and v+ dv is given by

Maxwell Distribution Function In a given mass of gas, the velocities of all molecules are not the same, even when bulk parameters like pressure, volume and temperature are fixed. Collisions change the direction and the speed of molecules. However in a state of equilibrium, the distribution of speeds is constant or fixed. Distributions are very important and useful when dealing with systems containing large number of objects. As an example consider the ages of different persons in a city. It is not feasible to deal with the age of each individual. We can divide the people into groups: children up to age 20 years, adults between ages of 20 and 60, old people above 60. If we want more detailed information we can choose smaller intervals, 0–1, 1–2,..., 99– 100 of age groups. When the size of the interval becomes smaller, say half year, the number of persons in the interval will also reduce, roughly half the original number in the one year interval. The number of persons dN(x) in the age interval x and x + dx is proportional to dx or dN(x) = nx dx. We have used nx to denote the number of persons at the value of x. In a similar way the molecular speed distribution gives the number of molecules between the speeds v and v + dv. dN(v) = 4p N a3 e–bv2v2dv = nvdv. This is called Maxwell distribution.The plot of nv against v is shown in the figure. The fraction of the molecules with speeds v and v + dv is equal to the area of the strip shown. The average of any quantity like v2 is defined by the integralwhich agrees with the result derived from more elementary considerations.Q. When pressure, volume and temperature are fixed, in a given mass of gas, the velocities of all molecules

Maxwell Distribution Function In a given mass of gas, the velocities of all molecules are not the same, even when bulk parameters like pressure, volume and temperature are fixed. Collisions change the direction and the speed of molecules. However in a state of equilibrium, the distribution of speeds is constant or fixed. Distributions are very important and useful when dealing with systems containing large number of objects. As an example consider the ages of different persons in a city. It is not feasible to deal with the age of each individual. We can divide the people into groups: children up to age 20 years, adults between ages of 20 and 60, old people above 60. If we want more detailed information we can choose smaller intervals, 0–1, 1–2,..., 99– 100 of age groups. When the size of the interval becomes smaller, say half year, the number of persons in the interval will also reduce, roughly half the original number in the one year interval. The number of persons dN(x) in the age interval x and x + dx is proportional to dx or dN(x) = nx dx. We have used nx to denote the number of persons at the value of x. In a similar way the molecular speed distribution gives the number of molecules between the speeds v and v + dv. dN(v) = 4p N a3 e–bv2v2dv = nvdv. This is called Maxwell distribution.The plot of nv against v is shown in the figure. The fraction of the molecules with speeds v and v + dv is equal to the area of the strip shown. The average of any quantity like v2 is defined by the integralwhich agrees with the result derived from more elementary considerations.Q. For a given mass of gas, in a state of equilibrium, the distribution of speeds

Attempt All sub parts from each question.Molecular Perspective In water, there are two types of molecules. Some molecules are at the surface, called exterior molecules, and some molecules are inside, called interior molecules. The interior molecules are attracted to all the molecules around them. The exterior molecules are attracted to only the other surface molecules and to those below the surface. So that the energy state of the molecules on the interior is much lower than that of the molecules on the exterior. The molecules always try to maintain a lower energy state and hence the exterior molecules experience a downward force. This force is known as cohesive force. As a result they try to maintain a minimum surface area, thus allowing more molecules to have a lower energy state. Thus surface tension is created. The water molecules attract one another due to the water molecule’s polar property. The hydrogen ends, which are positive in comparison to the negative ends of the oxygen, cause water to "stick " together. This is why there is surface tension. Water has very high surface tension. It is 72.8 milli newton per meter at 20°C.Q. Which one of the following is the correct molecular structure of water molecule?

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Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer?
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Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? for Class 11 2024 is part of Class 11 preparation. The Question and answers have been prepared according to the Class 11 exam syllabus. Information about Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? covers all topics & solutions for Class 11 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer?.
Solutions for Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 11. Download more important topics, notes, lectures and mock test series for Class 11 Exam by signing up for free.
Here you can find the meaning of Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer?, a detailed solution for Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? has been provided alongside types of Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice Select the correct statement (s).a)Kinetic energy is zero at 0°Cb)Root mean square velocity of CO2 gas at 298 c)Distribution of molecules is very small when u → 0 or u →∞d)Most probable velocity has maximum value out of all the molecular velocitiesCorrect answer is option 'B,C'. Can you explain this answer? tests, examples and also practice Class 11 tests.
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