Helium gas has cv = 12:5 J mol^-1K^-1. n = 100 mol of helium gas ini-...
Helium gas has cv = 12:5 J mol^-1K^-1. n = 100 mol of helium gas ini- tially has volume 0.2 m3 and pressure 5 106 Pa. Find the energy transfer by heating if pressure increases by 50% due to an isochoric process. (You do not need to know n but I include it in case you use a dierent method).
Homework Answers
Here we use ideal gas equation and specific heat capacity concept for gases at constant volume,
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loo 1.5P, 0 R.
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Helium gas has cv = 12:5 J mol^-1K^-1. n = 100 mol of helium gas
ini-...
(d) Helium gas has c 2.5 mol-K-. n 100 mol of helium gas ini- tially has...
(d) Helium gas has c 2.5 mol-K-. n 100 mol of helium gas ini- tially has volume 0.2 m3 and pressure 5 x 106 Pa. Find the energy transfer by heating if pressure increases by 50% due to an isochoric process. (You do not need to know n but I include it in case you use a different method)
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( DETAILED SOLUTION + CLEAR HANDWRITING)
In this question, assume no changes in Ek or Ep (a) In one cycle of a heat engine: 70 J are input by working, 90 J are output by working, 100 J are input by heating, 80 J are output by heating. Write down which one of the following is true: (A) |Wnet-160 J (B) Iw.et-20 J (C) η-0.25 (b) For a fixed amount of gas,...
PLEASE
SOLVE ALL QUESTIONS ( EMPHASIZE ON D + E ) PLEASE ( CLEAR
HANDWRITING)
Question 2 (each part is worth 5 marks) Data for oxygen gas (02): relative molecular mass: 32.0 molar specific heat at constant pressure: 29.1 J nol-1K-1 molar specific heat at constant volume: 20.8 J mol-1K-1 Assume all gases are ideal (a) 100 mol of a gas (not oxygen) is initially at temperature -20°C. The gas undergoes isobaric expansion, such that the final temperature is +300C....
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A piston contains 600 moles of an ideal monatomic gas that initally has a pressure of 2.35 x 10 Pa and a volume of 1.8 m5. The piston is connected to a hot and cold reservoir and the gas goes through the following quasi-static cycle accepting energy from the hot reservoir and exhausting energy into the cold reservoir 1. The pressure of the gas is increased to 5.35 x 105 Pa while maintaining a constant volume. 2. The volume of...
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