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On a cool day at 21 °C on the beach Isabella wants to propose to her boyfriend, she has a sign that reads, "Will you marry me?". The sign weighs 21.2 lbs. To carry the sign into the air Isabella fills 2 balloons with Helium gas.

On a cool day at 21 °C on the beach Isabella wants to propose to her boyfriend, she has a sign that reads, "Will you marry me?". The sign weighs 21.2 lbs. To carry the sign into the air Isabella fills 2 balloons with Helium gas.

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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On a cool day at 21 °C on the beach Isabella wants to propose to her boyfriend, she has a sign that reads, “Will you marry me?". The sign weighs 21.2 lbs. To carry the sign into the air Isabella fills 2 balloons with Helium gas. How many liters of helium must Isabella fill each balloon with? (453.6 g = 1 lb) The buoyancy of He is the difference between the density of helium and the density of air (whose weighted average molar mass can be calculated from the gasses that make it up and their % (N₂ = 78%, O₂ = 21%, Ar = 1%). HINT: calculate the mass in grams Helium can lift. 2 PS. Isabella realized that her non-science major boyfriend was not smart enough for her and dumped him!
Transcribed Image Text:On a cool day at 21 °C on the beach Isabella wants to propose to her boyfriend, she has a sign that reads, “Will you marry me?". The sign weighs 21.2 lbs. To carry the sign into the air Isabella fills 2 balloons with Helium gas. How many liters of helium must Isabella fill each balloon with? (453.6 g = 1 lb) The buoyancy of He is the difference between the density of helium and the density of air (whose weighted average molar mass can be calculated from the gasses that make it up and their % (N₂ = 78%, O₂ = 21%, Ar = 1%). HINT: calculate the mass in grams Helium can lift. 2 PS. Isabella realized that her non-science major boyfriend was not smart enough for her and dumped him!
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