Study Plan Practice - Luis Castillo- le Chrome https://www.mathxl.com/Student/Pl

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Study Plan Practice - Luis Castillo- le Chrome https://www.mathxl.com/Student/PlayerPractice.aspx?closeUr =/Student/StudyPlan.aspx%3Fchapterld%3D12%26sId%3D-1 %26obiectiveld%3D 1 &chapterld; = 1 2&sid; -1 &object; veld =-1 &exl; Luis Castillo 4/26/16 4:05 PM Chapter 12 Models and Systems Overview 41) 42T 43) 44 Review 12-13 (algorithmic) 0 correct 1 of 44 complete It is extremely difficult to bring the internet to some remote parts of the world. This can be inexpensively facilitated by installing antennas tethered to large helium balloons. To help analyze the situation, assume we have inflated a large spherical balloon. If the temperature increases, the balloon will expand and or the pressure will increase to maintain the equality. As it turns out, the increase in volume is the dominant effect, so we will treat the change in pressure as negligible. The circumference of an inflated spherical balloon is measured at various temperatures, the resulting data are shown in the graph below | Click the icon to view the expression for the pressure on the inside of the balloon. Click the icon to view the provided graph. Click the icon to view conversion formulas for temperature scales More (b) What are the units ot the constant 23.9? cm 23.9 031 (c) What would the temperature of the balloon be if the circumference was 152 centimeters? The temperature of the balloon is 391 K. (Round your answer to three significant digits.) (d) If a circle with an area of 114 square centimeters is drawn on the balloon at 19 degrees Celsius, what would the area be at a temperature of 100 degrees Celsius? The area of the circle at a temperature of 100 degrees Celsius is 133 cm. (Round your answer to three significant digits.) (e) If the pressure inside the balloon is 1.22 atmospheres, how many moles of gas does it contain? The balloon contains 3.43 moles of gas. (Round your answer to three significant digits.) Question is complete. Move your pointer over or tap on the red indicators to see incorrect answers. All parts showing Similar Exercise Close 4:11 PM 4/26/2016

Explanation / Answer

For question e) they have asked to find the number of moles of a gas in the balloon.

and coming to answer they have taken the gas as a ideal gas for ideal gas we have the standard equation that is

pv= nrt

in this we have to find 'n' and 'r' universal gas constant which is a constant value.

all the values are given please substitute them so you can get the answer

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