Physics Technology Update (4th Edition)

Published by Pearson
ISBN 10: 0-32190-308-0
ISBN 13: 978-0-32190-308-2

Chapter 18 - The Laws of Thermodynamics - Problems and Conceptual Exercises - Page 644: 16

Answer

$2$

Work Step by Step

We know that for an isothermal process $P_iV_i=P_fV_f$ $\implies PiV_i=P_f(2V_i)$ Given that $V_f=2V_i$ This simplifies to: $\frac{P_i}{P_f}=2$ $\implies P_f=\frac{P_i}{2}$ Thus, the pressure of the gas is decreased by a factor of 2.
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