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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Draw a p-V diagram of the irreversible process.

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प्रश्न

Draw a p-V diagram of the irreversible process. 

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उत्तर

p-V diagram of the irreversible process:

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पाठ 4: Thermodynamics - Short Answer I

संबंधित प्रश्‍न

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


Heating a gas in a constant volume container is an example of which process?


Differentiate between the reversible and irreversible processes.


Explain the thermodynamics of the isochoric process.  


Explain thermodynamics of the adiabatic process.  


The V-T diagram of an ideal gas which goes through a reversible cycle A→B→C→D is shown below. (Processes D→A and B→C are adiabatic)

The corresponding PV diagram for the process is (all figures are schematic)


In an isochoric process, we have ____________.


Give the equation of state for an isothermal process.


Give the equation of state for an adiabatic process.


Give an equation state for an isochoric process.


Draw the PV diagram for the isobaric process.


Draw the PV diagram for the isochoric process.


What is meant by a reversible and irreversible processes?


Explain in detail an adiabatic 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)


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 ____________.


One mole of an ideal gas with `gamma` = 1.4 is adiabatically compressed so that its temperature rises from 27° C to 47° C. The change in the internal energy of the gas is (R = 8.3 J/mol.K) ____________.


An ideal gas A and a real gas B have their volumes increased from V to 2V under isothermal conditions. The increase in internal energy ____________.


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.


We consider a thermodynamic system. If `Delta"U"` represents the increase in its internal energy and W the work done by the system, which of the following statements is true?


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)


Which of the following processes is reversible?  


Consider P-V diagram for an ideal gas shown in figure.


Out of the following diagrams (figure), which represents the T-P diagram?


(i)

(ii)

(iii)

(iv)

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


When an inflated ballon is suddenly burst, why is the emerging air slightly cooled?


Explain how can a gas be expanded at constant temperature.


In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.


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