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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

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


What is a thermodynamic process?


State the assumptions made for thermodynamic 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 work done during a thermodynamic process.


Explain the thermodynamics of the isobaric process.  


Explain the thermodynamics of the isochoric process.  


Give the equation of state for an isothermal process.


Give an equation state for an isochoric process.


Derive the work done in an isothermal process.


Explain in detail an adiabatic process.


Derive the work done in an adiabatic 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

Consider the following cyclic process consist of isotherm, isochoric and isobar which is given in the figure.

Draw the same cyclic process qualitatively in the V-T diagram where T is taken along the x-direction and V is taken along the y-direction. Analyze the nature of heat exchange in each process.


An ideal gas is taken in a cyclic process as shown in the figure. Calculate

  1. work done by the gas
  2. work done on the gas
  3. Net work done in the 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

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

 


Among the amount of heat absorbed and the amount of work done by a system, ______


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 ____________.


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?


Which of the following processes is reversible?  


Explain the thermodynamic process.


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


An ideal gas is taken through a cyclic process ABCDA as shown in figure. The net work done by the gas during the cycle is ______.


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