Four (4) moles of helium gas undergo the following cyclic process (A→B→C→A). If 1 atm = 1.0 x 10° Pa, and the total internal energy of such an ideal gas equals žnRT, where n, R and T are the number of moles of the gas, the universal gas constant and temperature in kelvin, respectively, (a) what is the total amount of work done on the gas in one cycle? what is the amount of heat involved in one cycle? (b) (c) universal gas constant? what is the change in entropy of the gas from A to B in terms of R, the P (atm) A 16 A to B: Constant T B V (Liter) Figure 2: P-V diagram. 3 8 CO

Four (4) moles of helium gas undergo the following cyclic process (A→B→C→A). If 1 atm = 1.0 x 10° Pa, and the total internal energy of such an ideal gas equals žnRT, where n, R and T are the number of moles of the gas, the universal gas constant and temperature in kelvin, respectively, (a) what is the total amount of work done on the gas in one cycle? what is the amount of heat involved in one cycle? (b) (c) universal gas constant? what is the change in entropy of the gas from A to B in terms of R, the P (atm) A 16 A to B: Constant T B V (Liter) Figure 2: P-V diagram. 3 8 CO

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 45PQ: Figure P21.45 shows a cyclic process ABCDA for 1.00 mol of an ideal gas. The gas is initially at Pi...

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One mole of an ideal gas does 3 000 J of work on its surroundings as it expands isothermally to a final pressure of 1.00 atm and volume of 25.0 L. Determine (a) the initial volume and (b) the temperature of the gas.
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