Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 10 - Gases - Exercises: 10.27b

Answer

34.69 psi

Work Step by Step

From Amonton's law we have that P/T = constant. First we must convert from F to Kelvin: C = (F-32)/1.8 so 75F is (75-32)/1.8 = 23.89 C and 120F is (120-32)/1.8 = 48.89 C Then we add 273 to convert to K 23.89C --> 296.89 K 48.89C --> 321.89 K Therefore, we have the initial P of 32 psi and initial T of 296.89F The final T is 321.89F so we can say: P/T = P/T or 32psi/ 296.89K = P / 321.89K P = 34.69 psi
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