CBSE Class 11-science Physics Kinetic Theory
- Derive allotropic constant in terms of degree of freedom and hence find it's value for monotonic diatomic and polyatomic gases . 4. Derive the expression for mean free path for a gas .
- Kinetic and calculus method
- The graph shows the variation of PV with P of given masses of three gases A, B and C. The temperature is kept constant. Which of these is ideal graph?
- Is the r.m.s speed same as the average speed?
- When a gas is suddenly compressed, its temperature rises. Why?
- The volume of a gas sample is increased. Why does the pressure, which is exerted by the gas, decrease?
- In terms of the kinetic theory of gases, explain why the pressure of a gas in a closed container increases when the gas is heated?
- If three molecules have velocities 0.5, 1 and 2 km/s respectively, calculate the ratio of the root mean square speed and average speed.
- Calculate the root mean square velocity of oxygen molecules at 27oC. Take the density of oxygen to be 0.001424 g/cc.
- At what temperature, will the root mean square velocity of a gas at 0oC be half its value, if the pressure remains constant?
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