Physics for Scientists and Engineers
Physics for Scientists and Engineers
6th Edition
ISBN: 9781429281843
Author: Tipler
Publisher: MAC HIGHER
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Chapter 17, Problem 22P
To determine

The total number of air molecules in the class-room.

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Rectangular tank contains 3.0 kg of air. The length of the tank is 1.1 m and the width is 0.9 m. The pressure p of the tank is 1.2 bar temperature T₁ is -20 °C. Calculate a) Amount of air n b) Height of the tank h c) Density of air p mol (with zero decimal accuracy) m (with one decimal accuracy) kg/m3 (with one decimal accuracy) If the temperature inside the tank increases by 50 °C, what is the new pressure in the tank? d) New pressure P2 bar (with one decimal accuracy)
Space Physics: The solar corona is a very hot atmosphere surrounding the visible surface of the sun. X-ray emissions from the corona show that its temperature is about 2 × 106 K. The gas pressure in the corona is about 0.03 Pa. Estimate the number density of particles in the solar corona with units of particles per cubic meter.
Estimate the number of molecules per C.C. of hydrogen at 27°C. Given the mass of a hydrogen molecule 3.4 x 1027 kg, R.M.S. velocity of hydrogen molecules at N.T.P. is 1840 m/s.

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