Two nitro (NO₂) groups are chemically bonded to a patch of surface. They can't move to another location on the surface, but they can rotate (see sketch at right). It turns out that the amount of rotational kinetic energy each NO₂ group can have is required to be a multiple of g, where =1.0 × 10-24 J. In other words, each NO₂ group could have of rotational kinetic energy, or 28, or 3s, and so forth - but it cannot have just any old amount of rotational kinetic energy. Suppose the total rotational kinetic energy in this system is initially known to be 68. Then, some heat is removed from the system, and the total rotational kinetic energy falls to 64c. Calculate the change in entropy. Round your answer to 3 significant digits, and be sure it has the correct unit symbol. Two rotating NO₂ groups bonded to a surface.

Two nitro (NO₂) groups are chemically bonded to a patch of surface. They can't move to another location on the surface, but they can rotate (see sketch at right). It turns out that the amount of rotational kinetic energy each NO₂ group can have is required to be a multiple of g, where =1.0 × 10-24 J. In other words, each NO₂ group could have of rotational kinetic energy, or 28, or 3s, and so forth - but it cannot have just any old amount of rotational kinetic energy. Suppose the total rotational kinetic energy in this system is initially known to be 68. Then, some heat is removed from the system, and the total rotational kinetic energy falls to 64c. Calculate the change in entropy. Round your answer to 3 significant digits, and be sure it has the correct unit symbol. Two rotating NO₂ groups bonded to a surface.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Repulsive and Total Interactions Between Molecules

Intermolecular forces are the repulsive or attractive interaction between the molecules. Due to the coulomb’s law, there will be a coulomb force that exists between two or more charged species. If the charge of both molecules is positive or negative, then that will lead to repulsive forces. When they have opposite charges, then the force is attractive.

Question

Two nitro (NO₂) groups are chemically bonded to a patch of surface. They can't move to another location on the surface, but they
can rotate (see sketch at right).
It turns out that the amount of rotational kinetic energy each NO₂ group can have is required to be a multiple of a, where
* = 1.0 × 10-24 J. In other words, each NO₂ group could have & of rotational kinetic energy, or 2, or 3, and so forth - but it
cannot have just any old amount of rotational kinetic energy.
Suppose the total rotational kinetic energy in this system is initially known to be 68. Then, some heat is removed from the
system, and the total rotational kinetic energy falls to 64€. Calculate the change in entropy.
Round your answer to 3 significant digits, and be sure it has the correct unit symbol.
0
0.0
X
H
olo
G
की
Two rotating NO, groups
bonded to a surface.

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