Calculate the change in entropy when the pressure of a perfect gas is changed isothermally from...

Question

Question

Answer 1

Answer #1

I me have to find entropy Change when its pressure is changed Isothermally Entropy Change is given as :- JAS = nCp In It + nR

Answer 2

Similar Homework Help Questions

¨Calculate the entropy change when 2 moles of an ideal gas are allowed to expand isothermally...

¨Calculate the entropy change when 2 moles of an ideal gas are allowed to expand isothermally from an initial volume of 1.5 L to 2.4 L. Then estimate the probability that the gas will contract spontaneously from the final volume to the initial one.
Half a mole of a perfect gas expands isothermally and at 298.15 K from a volume...

Half a mole of a perfect gas expands isothermally and at 298.15 K from a volume of 10 L to a volume of 20 L. (a) What is the change in the entropy of the gas? (b) How much work is done on the gas? (c) What is qsurr ? (d) What is the change in the entropy of the surroundings? (e) What is the change in the entropy of the system plus the surroundings? Now consider that the expansion...
change in Helmholtz free energy for this process? (-2862 kJ/mol) 7. Calculate the entropy change when...

change in Helmholtz free energy for this process? (-2862 kJ/mol) 7. Calculate the entropy change when 0.7760 moles of oxygen gas, a perfect gas, expands isothermally from a volume of 36.80 mL to 84.90 mLs. (ANS: 5.394 J/K) 8. The standard reaction enthalpy for the hydrogenation of propene, CH2=CHCH + 5O2 →

3. A sample of 3.0 mole of a perfect gas at 25 °C expands from 5.0...

3. A sample of 3.0 mole of a perfect gas at 25 °C expands from 5.0 L to 15.0 L. How much are the entropy changes of the system and the surroundings, and the total change in entropy in the following processes: (a) the gas expands reversibly and isothermally; (b)the gas expands isothermally but irreversibly against an external pressure of zero (Pex= 0), and (c) the gas expands adiabatically and reversibly. (20 pts)
A piston containing 0.75 moles of a perfect gas at 25 degrees C is moved isothermally...

A piston containing 0.75 moles of a perfect gas at 25 degrees C is moved isothermally from a starting volume of 8.305 L. Calculate the work in joules if the piston is moved irreversibly against a constant external pressure of 4.100 atm. We weren't giving final volume so I am unsure of what to do. I tried to use P1V1 = P2V2 because the final pressure is equal to external pressure in an irreversible process. But then my final volume...
2.00 mol diatomic perfect gas molecules, for which Cp = 7/2R, is changed from 25°C and...

2.00 mol diatomic perfect gas molecules, for which Cp = 7/2R, is changed from 25°C and 1.50 atm to 135°C and 7.00 atm. Without doing any calculations, is the change in temperature or the change in pressure more important in determining the overall change in entropy (of the system)? Why? What can you conclude about the sign of ΔSsys . Calculate ΔSsys for the change.

5. Calculate the change in entropy of an ideal gas when 2.00 moles of it is...

5. Calculate the change in entropy of an ideal gas when 2.00 moles of it is changed from 25 °C and 1.50 atm to 135 °C and 7.00 atm. You may assume that Cp.m=5/2 R. (10 pts) J/K
Calculate the change in entropy for 5 moles of carbon dioxide gas as it is compressed...

Calculate the change in entropy for 5 moles of carbon dioxide gas as it is compressed isothermally from 20L to 5L at a temperature of 300K. Consider CO 2 is an (a) ideal gas (b) Van der Waals gas
8. Calculate the change in the chemical potential of a perfect gas when its partial pressure...

8. Calculate the change in the chemical potential of a perfect gas when its partial pressure doubles at a temperature of 200°C. 9. Determine the molar Gibbs energy of mixing for the formation of an equimolar mixture of two perfect gases at a temperature of 298 K. 10. An ideal solution is prepared by mixing 15.6 g of toluene, CsH CH3, and 136.2 g of n-butanol, C4H2OH at 25 °C. The vapour pressure of pure n-butanol is 885 Pa at...

Calculate the entropy change of 1.0 mol of an ideal gas that undergoes an isothermal transformation...

Calculate the entropy change of 1.0 mol of an ideal gas that undergoes an isothermal transformation form an initial state of pressure pi = 1.50atm and volume 500cm^3 to a final state of pressure of = 0.09atm.