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Get Full Access to Atkins' Physical Chemistry - 11 Edition - Chapter 13a - Problem E13a.6(a)
Get Full Access to Atkins' Physical Chemistry - 11 Edition - Chapter 13a - Problem E13a.6(a)

× ISBN: 9780198769866 2042

## Solution for problem E13A.6(a) Chapter 13A

Atkins' Physical Chemistry | 11th Edition

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Problem E13A.6(a)

A certain molecule has a non-degenerate excited state lying at $$540 \mathrm{~cm}^{-1}$$ above the non-degenerate ground state. At what temperature will 10 per cent of the molecules be in the upper state?

Text Transcription:

540 cm^-1

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Chemistry 120 August 22nd - Online homework is already set up through inclusive access. Go to canvas, then assignments, and the Barnes homework link is there. The homework for the entire year is there and the due dates are posted with each assignment. Review Unit The units of measurement - Mass is in kilograms, length in meters, time in seconds, temperature in kelvins, amount of substance we use mole, electric current we use ampere, luminous intensity we use candela - Metric system is used in powers of ten - Units larger or smaller than the base unit are expressed by a prefix (i.e. kilo, deci, centi, milli, micro, nano) - Volume base unit is a Liter, millimeters are also commonly used. A liter is a cube that is 1 decimeter long on each side. A millimeter is a cube one centimeter long on each side. (1cc = 1mL) Precision vs Accuracy - Precision is the proximity of several measurements to each other - Accuracy is the proximity of a measurement to an actual quantity. - Scientific numbers are reported so every digit is certain except the last digit. The last digit of a number is always estimated (rounding) - In the example in the Lecture Notes, Student C is accurate and precise. They were consistent and accurate to the 10 gram value. Student B was precise in numbers and close in proximity but not the 10 grams he was supposed to find.

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## Discover and learn what students are asking

Calculus: Early Transcendental Functions : The Natural Logarithmic Function: Integration
?In Exercises 1-26, find the indefinite integral. $$\int \frac{5}{x} d x$$

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