A tank in a room at 190C is initially open to the atmosphere on a day when the barometric pressure is 102 kPa. A block of dry ice (solid CO2) with a mass of 15.7 kg is dropped into the tank, which is then sealed. The reading on the tank pressure gauge initially rises very quickly, then much more slowly, eventually reaching a value of 3.27 MPa. Assume Tfinal = 190C. (a) How many moles of air was in the tank initially? Neglect the volume occupied by CO2 in the solid-state, and assume that a negligible amount of CO2 escapes prior to the sealing of the tank. (b) What is the final density (g/liter) of the gas in the tank?
A tank in a room at 190C is initially open to the atmosphere on a day when the barometric pressure is 102 kPa. A block of dry ice (solid CO2) with a mass of 15.7 kg is dropped into the tank, which is then sealed. The reading on the tank pressure gauge initially rises very quickly, then much more slowly, eventually reaching a value of 3.27 MPa. Assume Tfinal = 190C. (a) How many moles of air was in the tank initially? Neglect the volume occupied by CO2 in the solid-state, and assume that a negligible amount of CO2 escapes prior to the sealing of the tank. (b) What is the final density (g/liter) of the gas in the tank?
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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A tank in a room at 190C is initially open to the atmosphere on a day when the barometric pressure is 102 kPa. A block of dry ice (solid CO2) with a mass of 15.7 kg is dropped into the tank, which is then sealed. The reading on the tank pressure gauge initially rises very quickly, then much more slowly, eventually reaching a value of 3.27 MPa. Assume Tfinal = 190C.
(a) How many moles of air was in the tank initially? Neglect the volume occupied by CO2 in the solid-state, and assume that a negligible amount of CO2 escapes prior to the sealing of the tank.
(b) What is the final density (g/liter) of the gas in the tank?
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