1) Which of the following influences the degree of freedom of a gas molecule? a) The number of atoms per molecule and the temperature of the gas b) The mass of the gas molecule and the temperature of the gas c) The mass of the gas molecule and the pressure of the gas d) The r.m.s speed of the gas molecule and the pressure of the gas 2) Oxygen molecules are diatomic and they have translational and rotational motions at room temperature. What is the number of degrees of freedom at a very low temperature of 30K? a) 0 b) 1 c) 3 d) 5 3) For an ideal gas, the energy associated with each degree of freedom for a molecule is equal to a) 1/2 kT b) 3/4 kT c) 1/2 RT d) 3/4 RT 4) If the average kinetic energy per molecule of a diatomic ideal gas is equivalent to 0.1 eV, what is the temperature of the gas? a) 357 K b) 464 K c) 673 K d) 800 K 5) A cylinder contains hydrogen gas at a temperature of 5000 K. Calculate the total kinetic energy of a hydrogen molecule in the cylinder. a) 1.04 x 10 -19 J b) 1.73 x 10 -19 J c) 2.42 x 10 -19 J d) 3.45 x 10 -20 J
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Degree of Freedom Quiz
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