High School
SAT
ACT
University
MCAT
LSAT
DAT

New Practice Question

Related Topics

Wize University Physics Textbook (Master) > Thermodynamics

Thermodynamic Cycles

3 Activities

Wize University Physics Textbook (Master) > Thermodynamics

PV- Diagrams

4 Activities

An engineer wants to design! A thermodynamic path in order to increase the temperature of 1000 lit of a diatomic gas from 350K to 850K. He is considering two different options. The first method is to increase the temperature using a series of alternating adiabatic and isothermal processes so that during each adiabatic process the gas is heated up by 100K and then is expanded to its original volume through an isothermal process. The second method is to raise the temperature through a single isochoric process.

a) Draw P-V and T-S curves for both methods
b) In which method the heat added to the gas is less?
checklist
Mark Yourself Question
  1. Grab a piece of paper and try this problem yourself.
  2. When you're done, check the "I have answered this question" box below.
  3. View the solution and report whether you got it right or wrong.
Question A
More Thermodynamic Cycles Questions:
Thermodynamic Cycle (PV Diagram)
0.5 mole of a gas undergoes a cycle shown below. Find the heat has been added/removed from the gas during this cycle?
Thermodynamics: Heat Engines
A diatomic gas undergoes some thermodynamical processes according to the following plot. Imagine the process from a to b could be changed in order to get different efficiency for the following cycle under the condition that the temperature of the gas cannot exceed the temperature at point a during the entire cycle. What is the work done by the gas from a to b in a process which makes the efficiency of the heat engine equal to the half of the efficiency of a Carnot engine which works in the same range of temperatures? (Assume we have 2 moles of the gas)
The internal energy of a system remains constant during
cyclic
process.
Heat engine
A reversible heat engine has a pV diagram shown on the graph. Determine the net heat transferred between the engine and environment in one cycle.
More PV- Diagrams Questions:
A system of a cylinder and a piston has the shape of the diagram below when the temperature of the gas inside the cylinder is 300℃ and its pressure is 200πΎπ‘ƒπ‘Ž. The piston has a mass of 50 π‘˜π‘” and its radius is . 06 π‘š and pushes against a set of stops at initial condition so that the height of the cylinder is 80 π‘π‘š. The temperature outside the cylinder is 30℃ and the pressure is 1 π‘Žπ‘‘π‘š. The cylinder cools down by exchanging heat with the environment.
a. Draw a free body diagram of the piston.
b. At what temperature and pressure does the piston start to move
PV and TS Diagrams
A system of a cylinder and a piston has the shape of the diagram below when the temperature of the gas inside the cylinder is 300℃ and its pressure is 200πΎπ‘ƒπ‘Ž. The piston has a mass of 50 π‘˜π‘” and its radius is . 06 π‘š and pushes against a set of stops at initial condition so that the height of the cylinder is 80 π‘π‘š. The temperature outside the cylinder is 30℃ and the pressure is 1 π‘Žπ‘‘π‘š. The cylinder cools down by exchanging heat with the environment.
a. Draw a free body diagram of the piston.
b. At what temperature and pressure does the piston start to move down?