Review: Problem Solving in IsometricProcess 02

Twenty cu. ft of air at 320 psia and 420°F is cooled to 150°F at constant volume. Cv = 0.1714 and k = 1.4. What are (a) the final pressure (b) the work (c) the change in internal energy (d) the transferred heat) (e) the change of enthalpy and (f) the change of entropy.

Review: Problem Solving in IsometricProcess 02

Problem Statement:

Twenty cu. ft of air at 320 psia and 420°F is cooled to 150°F at constant volume. Cv = 0.1714 and k = 1.4. What are (a) the final pressure (b) the work (c) the change in internal energy (d) the transferred heat) (e) the change of enthalpy and (f) the change of entropy.

Course: Thermodynamics

TOPIC: Processes of Ideal Gas

SUBTOPIC: Isometric Process

DEFINITION: An Isometric Process is a reversible constant volume process. A constant volume process maybe reversible or irreversible.

Problem Answer:

a.) P2 = 221.78 psia b.) W = 0 c.) ∆U = -908.899 BTu d.) Q = ∆U = -908.899 BTu e.) ∆H = -1272.4598 BTu f.) ∆S = -1.2341 BTu/°R

Solution:

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