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Edexcel A-Level Chemistry A2 12.2 Entropy As a Measure of Disorder of a System in Terms of the Random Dispersal of Molecules and of Energy Quanta Between Questions

Count distinct ways energy can be distributed, then use greater molecular complexity or more accessible arrangements to justify the higher molar entropy.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • Complete energy-quanta distributions by listing every distinct allocation between molecules.
  • Compare standard molar entropies using molecular complexity and possible energy arrangements.

Edexcel A-Level Chemistry A2 12.2 Entropy As a Measure of Disorder of a System in Terms of the Random Dispersal of Molecules and of Energy Quanta Between Questions question 1

[Maximum number: 1]

Which of these gases would have the greatest standard molar entropy?

A

NH3\mathrm{NH}_{3}

B

H2\mathrm{H}_{2}

C

N2\mathrm{N}_{2}

D

SO2\mathrm{SO}_{2}

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