1. A gas has the following initial properties, m = 25 lb, P1 =485.3 psig, and T1 = 545 R. A certain amount is vacuumed out of the tank causing the following changes in the properties, T2 = 70 deg F and P2=285.3 psig. If heat was added to the remaining amount of gas in the tank causing an increase of temp of 85 deg F, prove that the following answers are achieved: a. mass = 15.43 lbm; b. weight = 15.43 lbf; c. gage pressure is 316.36 psi if the tank is 17,280 in3 . Note: Gas is unknown. Do not assume that the gas is air.
1. A gas has the following initial properties, m = 25 lb, P1 =485.3 psig, and T1 = 545 R. A certain amount is vacuumed out of the tank causing the following changes in the properties, T2 = 70 deg F and P2=285.3 psig. If heat was added to the remaining amount of gas in the tank causing an increase of temp of 85 deg F, prove that the following answers are achieved: a. mass = 15.43 lbm; b. weight = 15.43 lbf; c. gage pressure is 316.36 psi if the tank is 17,280 in3 . Note: Gas is unknown. Do not assume that the gas is air.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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1. A gas has the following initial properties, m = 25 lb, P1 =485.3 psig, and T1 = 545 R. A certain amount is vacuumed out of the tank causing the following changes in the properties, T2 = 70 deg F and P2=285.3 psig. If heat was added to the remaining amount of gas in the tank causing an increase of temp of 85 deg F, prove that the following answers are achieved:
a. mass = 15.43 lbm;
b. weight = 15.43 lbf;
c. gage pressure is 316.36 psi if the tank is 17,280 in3
.
Note: Gas is unknown. Do not assume that the gas is air.
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