Physics 1028 Lecture 14: Chapter 8

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Published on 24 Sep 2020
School
Western University
Department
Physics
Course
Physics 1028
Professor
Selection of Even–Numbered Problem Solutions
Chapter 8
P–8.2
We determine the amount of gas in mol from the ideal gas law n = p V/(R T). We convert the values given
in the problem to standard units:
the pressure p = 5.0 × 10–6 mmHg = 6.65 × 10–4 Pa,
the volume V = 1.0 × 10–5 m³ and
the temperature T = 293 K. Thus:
(1)
Next, we multiply n with Avogadro’s number, NA, to obtain the number of molecules in the container, N:
(2)
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