# 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.

#### 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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