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Draw a p-V diagram showing positive work at constant pressure. - Physics

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प्रश्न

Draw a p-V diagram showing positive work at constant pressure. 

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उत्तर

p-V diagram showing positive work at constant pressure:

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Thermodynamic Process
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अध्याय 4: Thermodynamics - Short Answer I

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संबंधित प्रश्न

An ideal gas is taken through an isothermal process. If it does 2000 J of work on its environment, how much heat is added to it?


For work done to be reversible, the process should be ______ 


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


Differentiate between the reversible and irreversible processes.


Explain the cyclic process. 


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)  


An ideal gas of volume 2 L is adiabatically compressed to (1/10)th of its initial volume. Its initial pressure is 1.01 x 105 Pa, calculate the final pressure. (Given 𝛾 = 1.4) 


Write a note on free expansion.


Explain thermodynamics of the adiabatic process.  


When you exercise in the morning, by considering your body as a thermodynamic system, which of the following is true?


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.


Apply first law for an isothermal process.


Apply first law for an adiabatic process.


Draw the PV diagram for the adiabatic process.


Draw the PV diagram for the isobaric 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 an adiabatic process.


Derive the work done in an adiabatic process.


Explain in detail the isochoric process.


For a given ideal gas 6 × 105 J heat energy is supplied and the volume of gas is increased from 4 m3 to 6 m3 at atmospheric pressure. Calculate

  1. the work done by the gas
  2. change in internal energy of the gas
  3. graph this process in PV and TV diagram

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,


An ideal gas is compressed to half its initial volume by means of several processes. Which of the process results in the maximum work done on the gas?


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


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


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