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1. A spherical balloon contains air at P1 = 120 kPa and is placed in a vacuum. It has an initial diameter of D1 = 0.3 m. The balloon is heated until its diameter is D2 = 0.4 m. It is known that the pressure in the balloon is %3D proportional to its diameter. Calculate the work of expansion.

1. A spherical balloon contains air at P1 = 120 kPa and is placed in a vacuum. It has an initial diameter of D1 = 0.3 m. The balloon is heated until its diameter is D2 = 0.4 m. It is known that the pressure in the balloon is %3D proportional to its diameter. Calculate the work of expansion.

Introduction to Chemical Engineering Thermodynamics
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 spherical balloon contains air at P1 = 120 kPa and is placed in a vacuum. It has an initial diameter of D1 = 0.3 m. The balloon is heated until its diameter is D2 1. = 0.4 m. It is known that the pressure in the balloon is proportional to its diameter. Calculate the work of expansion.
Transcribed Image Text:A spherical balloon contains air at P1 = 120 kPa and is placed in a vacuum. It has an initial diameter of D1 = 0.3 m. The balloon is heated until its diameter is D2 1. = 0.4 m. It is known that the pressure in the balloon is proportional to its diameter. Calculate the work of expansion.
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