Q2: One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 140°C and 12 bar by three different mechanically reversible processes: a- The gas is first heated at constant volume until its temperature is 140°C; then it is compressed isothermally until its pressure is 12 bar. b- The gas is first heated at constant pressure until its temperature is 140°C; then it is compressed isothermally to 12 bar. c- The gas is first compressed isothermally to 12 bar; then it is heated at constant pressure to 140°C. Calculate Q, W, AU, and AH in each case. Take CP = (7/2)R and CV = (5/2)R. Alternatively, take CP (5/2)R and CV (3/2)R. %3D %3D

Q2: One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 140°C and 12 bar by three different mechanically reversible processes: a- The gas is first heated at constant volume until its temperature is 140°C; then it is compressed isothermally until its pressure is 12 bar. b- The gas is first heated at constant pressure until its temperature is 140°C; then it is compressed isothermally to 12 bar. c- The gas is first compressed isothermally to 12 bar; then it is heated at constant pressure to 140°C. Calculate Q, W, AU, and AH in each case. Take CP = (7/2)R and CV = (5/2)R. Alternatively, take CP (5/2)R and CV (3/2)R. %3D %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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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Q2: One mole of an ideal gas, initially at 40°C and 1 bar, is changed to 140°C and
12 bar by three different mechanically reversible processes:
a- The gas is first heated at constant volume until its temperature is 140°C; then it
is compressed isothermally until its pressure is 12 bar.
b- The gas is first heated at constant pressure until its temperature is 140°C; then it
is compressed isothermally to 12 bar.
c- The gas is first compressed isothermally to 12 bar; then it is heated at constant
pressure to 140°C. Calculate Q, W, AU, and AH in each case. Take CP = (7/2)R
and CV (5/2)R. Alternatively, take CP = (5/2)R and CV (3/2)R.

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