b) Sketch the work of the expansion on a p- V diagram, and be sure to include theisotherm and indicate the initial and final volume on the isotherm. (No numbersare required on this graph.) A vacuum cleaner creates a negative air pressure of -20 kPa relative to the air outsidethe vacuum cleaner. Suppose 0.50 mol of a monoatomic ideal gas (Cv,m = 3/2 R) in adiathermic piston at 26.5 °C was suddenly exposed to this low pressure environment.(Assume that we are at sea level.)

We know that PV=nRThere, n, R and T are constantsThat means, PV=kSo, the graph will be rect…

Answered: b) Sketch the work of the expansion on…

University Physics Volume 2

18th Edition

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Author:OpenStax

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Chapter3: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 62P: For a temperature increase of 10 at constant volume, what is the heat absorbed by (a) 3.0 mol of a...

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For a temperature increase of 10 at constant volume, what is the heat absorbed by (a) 3.0 mol of a dilute monatomic gas; (b) 0.50 mol of a dilute diatomic gas; and (c) 15 mol of a dilute polyatomic gas?
Repeat the previous question if one gas is still helium but the other is changed to fluorine, F2.
An aluminum rod 0.500 m in length and with a cross-sectional area of 2.50 cm2 is inserted into a thermally insulated vessel containing liquid helium at 4.20 K. The rod is initially at 300 K. (a) If one-half of the rod is inserted into the helium, how many liters of helium boil off by the time the inserted half cools to 4.20 K? Assume the upper half does not yet cool. (b) If the circular surface of the upper end of the rod is maintained at 300 K, what is the approximate boil-off rate of liquid helium in liters per second after the lower half has reached 4.20 K? (Aluminum has thermal conductivity of 3 100 W/m K at 4.20 K; ignore its temperature variation. The density of liquid helium is 125 kg/m3.)
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One of a dilute diatomic gas occupying a volume of 10.00 L expands against a constant pressure of 2.000 atm when it is slowly heated. If the temperature of the gas rises by 10.00 K and 400.0 J of heat are added in the process, what is its final volume?
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An ideal monatomic gas is contained in a tall cylindricaljar of cross-sectional area 0.080 m2 fitted with an airtightfrictionless 0.15-kg movable piston. When the gas isheated (at constant pressure) from 25°C to 55°C, thepiston rises 1.0 cm. How much heat was required for thisprocess? Assume atmospheric pressure outside
How much thermal energy must be added to 3.00 moles of monatomic ideal gas tat 300 K kept at constant volume of 1.5 L in order to raise the temperature to 400 K ? How would the result change if the ideal gas in the example is diatomic
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b) Sketch the work of the expansion on a p – V diagram, and be sure to include the isotherm and indicate the initial and final volume on the isotherm. (No numbers are required on this graph.)