Calculate DU and DH for each of the following changes of state in 2 moles of an ideal gas with Cv= 3R/2:
a) (1.5 atm, 400 K) --> (3 atm, 800 K)
b) (2.5 atm, 20 L) --> (1 atm, 30 L)
c) (2 L, 400 K) --> (0.4 L, 400 K).
Give your answers in J.
Calculate DU and DH for each of the following changes of state in 2 moles of...
Calculate the change in entropy ΔS for 5.2 moles of an ideal gas when its thermodynamic state changes from p1 = 1.50 atm and T1 = 400.0 K to p2 = 3.00 atm and T2 = 600.0 K. The molar heat capacity of the gas at constant volume is CV,m = (7/2) R, and is independent of the temperature.
2.80 moles of an ideal gas with CV,m=3R/2 undergoes the transformations described in the following list from an initial state described by T = 310. K and P = 1.00 bar. The gas is heated to 615 K at a constant volume corresponding to the initial volume. Calculate q for this process
For a Van der Waals gas, the following equations hold. P = nRT/(V−nb) − a(n/V)2 dU = CV dT + a(n/V)2dV For chlorine gas, CV,m = 25.6 J K−1 mol−1, a = 6.343 bar L2 mol−2, and b = 0.0542 L mol−1. Calculate q, w, ΔU, and ΔH, in joules, when one mole of chlorine gas is expanded isothermally and reversibly at 449 K from 7.0 L to 15.0 L. Enter your answers accurate to the nearest joule. Do not include...
0.23 litre of an ideal monatomic gas (Cv,m = 3R/2) initially at 49 °C and 75 atm pressure undergo an expansion against a constant external pressure of 0.91 atm, and do 2.5 kJ of work. The final pressure of the gas is 0.91 atm. Calculate the change in enthalpy, ΔH. Report your answer in J.
For a Van der Waals gas, the following equations hold. P = nRT/(V−nb) − a(n/V)2 dU = CV dT + a(n/V)2 dV For chlorine gas, CV,m = 25.6 J K−1 mol−1, a = 6.343 bar L2 mol−2, and b = 0.0542 L mol−1. Calculate q, w, ΔU, and ΔH, in joules, when one mole of chlorine gas is expanded isothermally and reversibly at 449 K from 7.0 L to 15.0 L.
14:03 # # Still 100% Energy and Enthalpy Changes, Heat and Work -- Monatomic Ideal Gas Pressure (atm) в - А 6 8 10 12 14 16 18 20 22 Volume (L) 2.00-mol of a monatomic ideal gas goes from State A to State D via the path ABCD: State A PA=13.5atm, VA=11.50L State BPg=13.5atm, Vg-7.00L State CPc=20.5atm, Vc=7.00L State D Pp=20.5atm, Vo=20.00L Assume that the external pressure is constant during each step and equals the final pressure of the...
2.85 moles of an ideal gas with CV,m=3R/2 undergoes the transformations described in the following list from an initial state described by T = 310. K and P = 1.00 bar. Part A:The gas is heated to 600 K at a constant volume corresponding to the initial volume. Calculate q for this process. Express your answer with the appropriate units. Part B:The gas is heated to 600 K at a constant volume corresponding to the initial volume. Calculate w for...
Ideal Gas Law and Partial Pressures Name Directions: Calculate/answer the following: 1. 7.70 moles of Argon at a pressure of 0.190 atm and at a temperature of 65.8 °C, what is the volume of the container that the gas is in? 2. A sample of gas is 17.0 moles at a temperature of 77.0 °C, and a volume of 98.9 liters, what is the pressure of the gas? 3. 28.0 moles of gas held at a pressure of 580 atm...
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
Make a PV diagram showing the following sequential processes: 2.00 moles of an ideal gas at 400K, 1.00 atm. 1. expand isothermally from 65.6 L to 131.3 L at 400 K. 2. cooled isobarically from 65.6 L, 200 K 3. heated isochorically from 200 K back to 400 K