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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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

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प्रश्न

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

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उत्तर

p-V diagram showing positive work with varying pressure:

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पाठ 4: Thermodynamics - Short Answer I

संबंधित प्रश्‍न

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


State the assumptions made for thermodynamic processes.


Differentiate between the reversible and irreversible processes.


3 mole of a gas at temperature 400 K expands isothermally from an initial volume of 4 litres to a final volume of 8 litres. Find the work done by the gas. (R = 8.31 J mol-1 K-1)  


Write a note on free expansion.


Explain the thermodynamics of the isochoric process.  


In an isochoric process, we have ____________.


Give the equation of state for an adiabatic process.


Give an equation state for an isochoric process.


Draw the PV diagram for the isothermal process.


Draw the PV diagram for the isochoric process.


What is a cyclic process?


What is meant by a reversible and irreversible processes?


Can the given heat energy be completely converted to work in a cyclic process? If not, when can the heat can completely converted to work?


Explain in detail the isothermal process.


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 an adiabatic expansion of the air, the volume is increased by 4%, what is the percentage change in pressure? (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 ____________.


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?


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)

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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