While the pressure remains constant at 6895 kpa the

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41. While the pressure remains constant at 689.5 kPa, the volume of a system of air changes from 0.567 m 3 to 0.283 m 3 . Determine the heat added/rejected.
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42. A tank contains Helium (k=1.66), is heated from 83 o F to a final temperature of 190 o F in an unknown process. Find the change of internal energy, Btu/lb. a. 50.49 c. 60.49 c. 70.49 d. 80.49
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