Solution Found!
Answer: Indicate whether each statement is true or false.
Chapter , Problem 19.39(choose chapter or problem)
Indicate whether each statement is true or false. (a) The third law of thermodynamics says that the entropy of a perfect, pure crystal at absolute zero increases with the mass of the crystal. (b) Translational motion of molecules refers to their change in spatial location as a function of time. (c) Rotational and vibrational motions contribute to the entropy in atomic gases like He and Xe. (d) The larger the number of atoms in a molecule, the more degrees of freedom of rotational and vibrational motion it likely has.
Questions & Answers
QUESTION:
Indicate whether each statement is true or false. (a) The third law of thermodynamics says that the entropy of a perfect, pure crystal at absolute zero increases with the mass of the crystal. (b) Translational motion of molecules refers to their change in spatial location as a function of time. (c) Rotational and vibrational motions contribute to the entropy in atomic gases like He and Xe. (d) The larger the number of atoms in a molecule, the more degrees of freedom of rotational and vibrational motion it likely has.
ANSWER:Problem 19.39Indicate whether each statement is true or false. (a) The third law of thermodynamics says thatthe entropy of a perfect, pure crystal at absolute zero increases with the mass of the crystal. (b)Translational motion of molecules refers to their change in spatial location as a function of time.(c) Rotational and vibrational motions contribute to the entropy in atomic gases like He and Xe.(d) The larger the number of atoms in a molecule, the more degrees of freedom of rotationaland vibrational motion it likely has. Step-by-step solution Step 1 of 4 ^(a)A perfect, pure crystal at absolute zero has no randomness or disorder which means at absolutezero it has a perfect order of its molecules.Thus,S(0 K) = 0This is explained by the third law of thermodynamics which says that the entropy of perfect,pure crystal at absolute zero is zero.Therefore, the statement is false.