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If a given mass of gas is expanded at constant temperature
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Important Questions on States of Matter : Gases and Liquids
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The internal energy of one mole of an ideal gas is given by the expression:
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Consider an ideal gas confined in an isolated closed chamber. As the gas undergoes an adiabatic expansion, the average time of collision between molecules increases as , where is the volume of the gas. The value of is:
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If the distribution of molecular speeds of a gas is as per the figure shown below, then the ratio of the most probable, the average, and the root mean square speeds, respectively, is
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What is the kinetic energy (in ) of the nitrogen molecule at ?
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Initially, the root-mean-square (RMS) velocity of molecules at certain temperature is . If this temperature is doubled and all the nitrogen molecules dissociate into nitrogen atoms, then the new RMS velocity will be:
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The kinetic energy in of mole of at is:
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Identify the correct labels of and in the following graph from the options given below:
Root mean square speed most proable speed Average speed
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If the r.m.s. speed of a gaseous molecule is at a pressure , then what will be the r.m.s. speed at a pressure and constant temperature ?
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Which of the following statement(s) (are) correct regarding the root-mean-square speed and average translational kinetic energy of a molecule in a gas at equilibrium?
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Points and in the following plot respectively correspond to ( most probable velocity)
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At what temperature in, the most probable velocity of ozone gas is equal to RMS velocity of oxygen gas at
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Which of the following is not an assumption of the kinetic theory of gases?
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If the kinetic energy and speed of a gas at a certain temperature are and , respectively. The molecular weight of the gas is
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Predict the correct order of rate of diffusion of the following molecules.
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The quantity corresponds to
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What will be the relation between the of gas with and of gas with if the average speed of gas is equal to most probable speed of gas
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Among the following, the plot that shows the correct marking of most probable velocity average velocity and root mean square velocity is :
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The number density of molecules of a gas depends on their distance r from the origin as, Then the numer of molecules is proportional to:
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The temperature at which oxygen molecules have the same root mean square speed as helium atoms have at 300 K is : (Atomic masses : He = 4 u, O = 16 u)
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For gaseous state, if most probable speed is denoted by , average speed by and root mean square speed by , then for many molecules, what is the ratios of these speeds?
