A heat engine using air starts with p1 = 3 atm andV1 of 5 L. Its pressure increases at constant volumeto p2. It then expands adiabatically to V3 = 12 L.Finally it returns at constant pressure to its originalstate. Can someome please explain how tocalculate Q12 and Q31 ? Please show all work so Ican understand the process! Thank you!

Ans Given Now draw the P-V diagram of the heat engine asNow calculate the temperature at point 1…

Answered: A heat engine using air starts with p1…

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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A cylinder-piston apparatus contains 29 kg of air at 30°C. Weights on the piston fix the initial pressure at 20 bar. Find the work done if: a. Some of the weights are quickly removed until external pressure is 5 bar. The temperature remains constant. b. Some of the weights are slowly removed until the external pressure reaches 5 bar. The temperature remains constant. c. The expansion from 20 bar to 5 bar is polytropic, with an exponent of 1.4. Note that if the gas is ideal and PV = constant, then the temperature varies as: T₂ Tv 1-n P. n-1
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2.Two Carnot heat engines run in series with the efficiency of first engine is k times the second. If the thermal reservoir at low and high temperatures were denoted by TL and TH, find the simplified ratio of heat absorbed to heat rejected by the first heat engine in terms of TL, TH and k only.
Q2 (a) Describe briefly four characteristics of a heat engine. Sketch a simple diagram of a heat engine to show the process and direction of heat and work.
I need a simple step by step answer please :)
3 One kilogram of an ideal gas at 5.5 bar with an initial volume of 0.3 m expands to a final volume of 0.5 m in accordance with the equation = C. Find the work done during the process. Take R = 0.287 kJ/kg-K and C, = 0.713 kJ/kg-K. pV
Read the question carefully and give me right solution according to the question
Argon (molar mass 40 kg/kmol) compresses reversibly in an adiabatic system from 5 bar, 25 °C to a volume of 0.2 m If the initial volume occupied was 0.9 m calculate the final pressure in bar to 2 decimal places.. Assume nitrogen to be a perfect gas and take cv 0.3122kJ/kgK. Question 12 of 84 A Moving to another questlon will save this response.
Using Steam Table, find Ahf and Ahg in BTU/lbm and Asf and Asg in BTU/lbm-°R for the following parameters: 1. P₁ = 86.6 kPa; P₂ = 101.3 kPa 2. T₁ = 90°F; T2 = 125°F 3. P₁ = 4.7 psi; P2 = 12 psi

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