Air is compressed in a piston-cylinder assembly from p₁=10 lb/in², T₁ = 500°R, V₁ = 9 ft³ to a final volume of V₂ = 1 ft³ in a process described by ppl.30 = constant. Assume ideal gas behavior and neglect kinetic and potential energy effects. Using constant specific heats evaluated at T₁, determine the work and the heat transfer, in Btu. Step 1 Your answer is correct. Determine the work, in Btu. W12= -52.4075 Hint Step 2 * Your answer is incorrect. Btu Determine the heat transfer, in Btu. Q12-i-13.4475 Btu Attempts: 1 of 4 used

Air is compressed in a piston-cylinder assembly from p₁=10 lb/in², T₁ = 500°R, V₁ = 9 ft³ to a final volume of V₂ = 1 ft³ in a process described by ppl.30 = constant. Assume ideal gas behavior and neglect kinetic and potential energy effects. Using constant specific heats evaluated at T₁, determine the work and the heat transfer, in Btu. Step 1 Your answer is correct. Determine the work, in Btu. W12= -52.4075 Hint Step 2 * Your answer is incorrect. Btu Determine the heat transfer, in Btu. Q12-i-13.4475 Btu Attempts: 1 of 4 used

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

Question

Air is compressed in a piston-cylinder assembly from p₁ = 10 lb/in², T₁ = 500°R, V₁ = 9 ft³ to a final volume of V₂ = 1 ft³ in a process
described by pv¹.30 = constant. Assume ideal gas behavior and neglect kinetic and potential energy effects.
Using constant specific heats evaluated at T₁, determine the work and the heat transfer, in Btu.
Step 1
Your answer is correct.
Determine the work, in Btu.
W12 = -52.4075
Hint
Step 2
* Your answer is incorrect.
Determine the heat transfer, in Btu.
Q12-13.4475
Btu
eTextbook and Media
Btu
Attempts: 1 of 4 used

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Air is compressed in a piston–cylinder assembly from p1 = 25 lbf/in2, T1 = 500°R, V1 = 9 ft3 to a final volume of V2 = 1 ft3 in a process described by p⁢v1.30=constant. Assume ideal gas behavior and neglect kinetic and potential energy effects. Using constant specific heats evaluated at T1, determine the work and the heat transfer, in Btu.