1014| For each of the processes A-D described below enter your response (positive, zero, negative) in the appropriate box Process w АН В C A. Reversible melting at 1 atm. And the normal melting point of a substance which expands on melting. B. Reversible adiabatic expansion of a perfect gas. C. Reversible isothermal expansion of a perfect gas. D. Reversible cooling of a perfect gas at constant volume.

1014| For each of the processes A-D described below enter your response (positive, zero, negative) in the appropriate box Process w АН В C A. Reversible melting at 1 atm. And the normal melting point of a substance which expands on melting. B. Reversible adiabatic expansion of a perfect gas. C. Reversible isothermal expansion of a perfect gas. D. Reversible cooling of a perfect gas at constant volume.

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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For the given processes, determine if AHxn and ASin are positive, negative, or zero. CH₂(g) +20₂(g) - CO₂(g) + 2 H₂O(g) AH;xn= zero negative O positive CO₂ (s) → CO₂(g) AHin O positive zero negative ASin = positive zero negative ASin = zero positive negative Callioneral Chemistry | Pub
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Suppose that one of water at its boiling point is kept in a cylinder that has frictionless piston. For equilibrium to be established, a pressure is maintained above the piston. If the piston sweeps out a volume of 2.0 dm³. Calculate the work done by the system for the following paths: a- Free expansion b- Reversible expansion against constant pressure of 1.0 atm c- Isothermal reversible expansion with initial volume = 0.5 dm³.
Part A: 10 moles of ideal gas initially at 10 atm and 250 K is expanded isothermally and reversibly to a final pressure of 2 atm. Calculate W; U; and Q in Joules. Part B: The same gas in part A, starting in the same initial state, is expanded isothermally against a constant external pressure of 2 atm, to a final pressure of 2 atm. Calculate W; U; and Q in Joules for this irreversible process. Part C: The same gas in part B, starting in the same initial state, is expanded isothermally to a nal pressure of 2 atm. The process is carried out in 4 stages. First the gas is expanded against a constant pressure of 8 atm, to 8 atm. Then the gas is expanded against a constant pressure of 6 atm, to 6 atm. Then the gas is expanded against a constant pressure of 4 atm, to 4 atm. Finally, the gas is expanded against a constant pressure of 2 þtm, to 2 atm. Calculate W; U; and Q in Joules for the 4-step process.
4) Use data for AG°f to calculate equilibrium constants for each reaction at 25C: a) C(s - graphite) C (s-diamond) J b) 4 Ag + O₂ = 2 Ag₂O R=631 Mal R