(4) 2.50mol of Ar (ideal gas) initially at 298K and P= Ibar is heated until its volume is doubled. Find w done on the gas, q, AU, and AH if the process takes place at constant pressure, and P = Pext- Find AS, AS surr, and AStotal for surr spontaneous in those cases? Why? = 1000K and Tsurr = 298K. Is the process

(4) 2.50mol of Ar (ideal gas) initially at 298K and P= Ibar is heated until its volume is doubled. Find w done on the gas, q, AU, and AH if the process takes place at constant pressure, and P = Pext- Find AS, AS surr, and AStotal for surr spontaneous in those cases? Why? = 1000K and Tsurr = 298K. Is the process

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter5: Thermochemistry

Section: Chapter Questions

Problem 5.108QE

See similar textbooks

Similar questions

Use the data in Table 2.2 to determine Hp T for Ar at 0C and 1atm. Make any reasonable assumptions necessary.
The distance between downtown San Francisco and downtown Oakland is 9 miles. However, a car driving between the two points travels 12.3miles. Of these distances, which one is analogous to a state function? Why?
Under what conditions will U be exactly zero for a process whose initial conditions are not thesame as its final conditions?
Why is equation2.37 written interms of CV and Cp and not c-v and c-p ?
Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant volume. If 1.20 g of benzoic acid gives off 31, 723 J of energy when burned in the presence of excess oxygen and in a water bath having a temperature of 24.6 C, calculate q, w, H, and U for the reaction.
A 220-ft3 sample of gas at standard temperature and pressure is compressed into a cylinder, where it exerts pressure of 2000 psi. Calculate the work (in J) performed when this gas expands isothermally against an opposing pressure of 1.0 atm. (The amount of work that can be done is equivalent to the destructive force of about 1/4 lb of dynamite, giving you an idea of how potentially destructive compressed gas cylinders can be if improperly handled!)
Use the data in Table 2.2 to determine PH T for N2 at 50C and 20atm. Make any reasonable assumptions necessary.
A refrigerator contains approximately 17cubic feet, or about 480 liters, of air. Assuming it acts as an ideal gas with a molar CV of 12.47 J/mol.K, what is the change in U in cooling the air from normal room temperature 22C to refrigerator temperature 4C? Assume an initial pressure of 1.00 atm.
Show that = T/p for an ideal gas.
Hn Idul gas undergoes W, and A Ŭ bc The hat absorbed by gas, work done loy sas, and change m internal enerezy Of gas dirms Arocess. Which he is truc? an Bothermal expansion. let Q, QL0, WLO, AU=O Q=0, W>0, AURO
Q7. A sample consisting of 1 mol of perfect gas atoms (for which Cy=R) is taken through the cycle shown in the following figure (a) Determine the temperature at the points 1, 2, and 3. (b) Calculate q. w, AU, and AH for each step and for the overall cycle. If a numerical answer cannot be obtained from the information given, then write in +, , 0, or ? as appropriate. Pressure, platm 1.00 0.50 22.44 Isotherm Volume, Vidm 2 44.88
Say 0.0101 moles of gas in a car engine cylinder under a pressure of 608 kPa at 606 K expandsadiabatically and reversibly until it is at 1 atm pressure. The Cv,m of the gas is 20.8 J/K/mol whileCp,m = 29.12 J/K/mol, so what is q, Tf, U, w, Vf, and H?Hint: (Pi/Pf)= (Ti/Tf)^ (CV+nR/nR)