Imagine an alternate universe where the value of the Planck constant is \(6.62607 \times 10^{-7} \, \text{J} \cdot \text{s}\).In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics?| object | quantum or classical? ||--------|-----------------------|| An airplane with a mass of \(1.90 \times 10^4 \, \text{kg}\), 13.0 m long, moving at 2200. km/h. | ○ classical ○ quantum || An alpha particle with a mass of \(6.6 \times 10^{-27} \, \text{kg}\), \(8.0 \times 10^{-15} \, \text{m}\) wide, moving at 13. km/s. | ○ classical ○ quantum || A turtle with a mass of 790. g, 30. cm long, moving at 1.8 cm/s. | ○ classical ○ quantum || A mosquito with a mass of 1.0 mg, 9.9 mm long, moving at 3.5 m/s. | ○ classical ○ quantum |

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Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10 J.S. In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics? object An airplane with a mass of 1.90 x 104 kg, 13.0 m long, moving at 2200. km/h. An alpha particle with a mass of 6.6 x 10-27 kg, 8.0 x 10 15 m wide, moving at 13. km/s. A turtle with a mass of 790. g, 30. cm long, moving at 1.8 cm/s. A mosquito with at 3.5 m/s. mass of 1.0 mg, 9.9 mm long, moving quantum or classical? O classical O quantum O classical O quantum O classical O quantum O classical O quantum X

Imagine an alternate universe where the value of the Planck constant is 6.62607 × 10 J.S. In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics? object An airplane with a mass of 1.90 x 104 kg, 13.0 m long, moving at 2200. km/h. An alpha particle with a mass of 6.6 x 10-27 kg, 8.0 x 10 15 m wide, moving at 13. km/s. A turtle with a mass of 790. g, 30. cm long, moving at 1.8 cm/s. A mosquito with at 3.5 m/s. mass of 1.0 mg, 9.9 mm long, moving quantum or classical? O classical O quantum O classical O quantum O classical O quantum O classical O quantum X

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

Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.

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Imagine an alternate universe where the value of the Planck constant is \(6.62607 \times 10^{-7} \, \text{J} \cdot \text{s}\).

In that universe, which of the following objects would require quantum mechanics to describe, that is, would show both particle and wave properties? Which objects would act like everyday objects, and be adequately described by classical mechanics?

| object | quantum or classical? |
|--------|-----------------------|
| An airplane with a mass of \(1.90 \times 10^4 \, \text{kg}\), 13.0 m long, moving at 2200. km/h. | ○ classical <br> ○ quantum |
| An alpha particle with a mass of \(6.6 \times 10^{-27} \, \text{kg}\), \(8.0 \times 10^{-15} \, \text{m}\) wide, moving at 13. km/s. | ○ classical <br> ○ quantum |
| A turtle with a mass of 790. g, 30. cm long, moving at 1.8 cm/s. | ○ classical <br> ○ quantum |
| A mosquito with a mass of 1.0 mg, 9.9 mm long, moving at 3.5 m/s. | ○ classical <br> ○ quantum |

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