हिंदी

Draw a p-V diagram showing negative work with varying pressure. - Physics

Advertisements
Advertisements

प्रश्न

Draw a p-V diagram showing negative work with varying pressure. 

आकृति

उत्तर

p-V diagram showing negative work with varying pressure:

 

shaalaa.com
Thermodynamic Process
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 4: Thermodynamics - Short Answer I

संबंधित प्रश्न

Explain why The climate of a harbour town is more temperate than that of a town in a desert at the same latitude.


A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Figure

Its volume is then reduced to the original value from E to F by an isobaric process. Calculate the total work done by the gas from D to E to F


Answer in brief.

Why should a Carnot cycle have two isothermal two adiabatic processes?


State the assumptions made for thermodynamic processes.


Write a note on free expansion.


Explain work done during a thermodynamic process.


Explain the thermodynamics of the isobaric process.  


When a cycle tyre suddenly bursts, the air inside the tyre expands. This process is ____________.


Give an equation state for an isochoric process.


Draw the PV diagram for the isochoric process.


What is a cyclic process?


What is meant by a reversible and irreversible processes?


Derive the work done in an isothermal process.


Explain in detail an adiabatic process.


Derive the work done in an adiabatic process.


What are the limitations of the first law of thermodynamics?


Draw the TP diagram (P-x axis, T-y axis), VT(T-x axis, V-y axis) diagram for

  1. Isochoric process
  2. Isothermal process
  3. Isobaric process

In a petrol engine, (internal combustion engine) air at atmospheric pressure and temperature of 20°C is compressed in the cylinder by the piston to `1/8` of its original volume. Calculate the temperature of the compressed air. (For air γ = 1.4)


A thermodynamic system undergoes cyclic process ABCDA as shown in the figure. The work done by the system is ______

 


A monoatomic gas of pressure p having volume V expands isothermally to a volume 2V and then adiabatically to a volume 16V. The final pressure of the gas is ____________.

`("ratio of specific heats" = 5/3)`


An ideal gas is expanded isothermally from volume V1 to volume V2 and then compressed adiabatically to original volume V1. If the initial pressure is P1, the final pressure is P3 and net work done is W, then ____________.


An ideal gas is made to go from a state A to stale B in the given two different ways (see figure) (i) an isobaric and then an isochoric process and (ii) an isochoric and then an isobaric process. The work done by gas in the two processes are W1 and W2 respectively. Then,


Two identical samples of a gas are allowed to expand (i) isothermally (ii) adiabatically. Work done is ____________.


In which of the following processes, beat is neither absorbed nor released by a system?


Assertion: Equal volumes of monatomic and polyatomic gases are adiabatically compressed separately to equal compression ratio `("P"_2/"P"_1)`. Then monatomic gas will have greater final volume.

Reason: Among ideal gases, molecules of a monatomic gas have the smallest number of degrees of freedom.


The work done on the system in changing the state of a gas adiabatically from equilibrium state A to equilibrium state B is 22.4 J. If the gas is taken from state A to B through another process in which the net heat absorbed by the system is 15.5 cal, then the net work done by the system in the latter case is ______.

( l cal = 4.2 J)


In the figure shown here, the work done in the process ACBA is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×