4. Determine the values of AHsys, ASys, ASarr, and ASor when a 1.75 mol sample of superheated benzene vaporizes at 365.0 K and 1 bar. Assume the temperature of the surroundings stays constant at 365.0 K. Relevant benzene data: CPmlig 135.7 J-mol-K; CP.m.gas= 108.8 J-mol -K; Trop capacities are constant over the relevant temperature ranges. = 353.3 K at 1 bar; AHvap 30.72 kJ/mol at 353.3K and 1 bar. Assume the heat %3D

4. Determine the values of AHsys, ASys, ASarr, and ASor when a 1.75 mol sample of superheated benzene vaporizes at 365.0 K and 1 bar. Assume the temperature of the surroundings stays constant at 365.0 K. Relevant benzene data: CPmlig 135.7 J-mol-K; CP.m.gas= 108.8 J-mol -K; Trop capacities are constant over the relevant temperature ranges. = 353.3 K at 1 bar; AHvap 30.72 kJ/mol at 353.3K and 1 bar. Assume the heat %3D

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Answers are: -1.38 kJ; 1.38 kJ; 0; 0 Please explain thouroughly
A 84.8-g piece of silver (s = 0.237 J/(g ∙ °C)), initially at 268.0°C, is added to 128.4 gof a liquid, initially at 24.9°C, in an insulated container. The final temperature of themetal–liquid mixture at equilibrium is 39.6°C. What is the identity of theliquid? Neglect the heat capacity of the container.a. methanol (s = 2.53 J/(g ∙ °C))b. ethanol (s = 2.43 J/(g ∙ °C))c. hexane (s = 2.27 J/(g ∙ °C))d. water (s = 4.18 J/(g ∙ °C))e. acetone (s = 2.15 J/(g ∙ °C))
9. L ks] 4.50 mol of N₂ gas (Cvm = 20.6 J mol-¹ K-¹) is enclosed in a piston-cylinder assembly (closed system) and undergoes the cycle depicted graphically below. Assuming N₂ behaves as an ideal gas, calculate q, w, AU and AH for each segment (in kJ). Label each segment with the type of process. Note: segment 2+3 follows the relationship PV = nRT. P (bar) 1.) 20.0 L 2.) 50.0 L 3.) 5.00 bar T = T₂ = T₂ V (L) 2
10. A gas of R= 219 J undergo a process and results in these changes: AH = kgm-K 2190 KJ and AU = 1458 KJ. For 1.8 kgm, determine (a) Cy, C, and k. (b) AT and (c) WNF and Wsp. %3D
9. Larks] Calculate 4H for the process in which Cl2(g) initially at 298.15 K at 1 bar is heated to 690. K at 1 bar. Use the temperature-dependent heat capacity for Cl2(g) below. How large is the relative error if the molar heat capacity is assumed to be constant at its value of 298.15 K over the temperature interval? CPM -33.95 J K¹ mol for C12(g) at 298.15 K. -22.85 +0.06543 -1.2517 x 10-4+1.1484 x 10-7 Cpm JK-¹mol-1
Draw the mechanism that produces these products. Are the R or S? What is the relationship between these two stereoisomers?
Calculate the change in enthalpy of 2.00 mole of CO₂(g) if it is heated from 330 to 900K at constant pressure. The constant pressure heat capacity function for carbon dioxide is: J mol K T Cp(T)=(26.86+6.966e-3 +8.243e-7 3+8.243e-7 K
need help! will rate if completed ! assume perfect gas behavior
Plz solve it within 20-30 mins with a clear handwritten explanation I'll give you multiple upvotes
Please
Physical chemistry - please refer to pics Now, consider 2.0 moles of methane (CH4 ), initially at 273 K, that is reversibly and adiabatically compressed from an initial volume of 10.00 L to a final volume of 2.00 L. 3a. Determine the final temperature, considering the gas to be described by the ideal gas equation of state. 3b. Determine the work required w, the associated heat flow q, and the internal energy change ∆U for the gas between the initial and final states.