Advertisements
Advertisements
प्रश्न
Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure.
Advertisements
उत्तर
- p-V diagram showing positive work with varying pressure:
- p-V diagram showing negative work with varying pressure:
- p-V diagram showing positive work at constant pressure:
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
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?
Draw a p-V diagram of the reversible process.
Draw a p-V diagram showing positive work with varying pressure.
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)
Explain work done during a thermodynamic 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)
Apply first law for an isobaric process.
Draw the PV diagram for the isothermal process.
Explain in detail the isothermal process.
Derive the work done in an adiabatic process.
Explain in detail the isochoric process.
What are the limitations of the first law of thermodynamics?
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
- the work done by the gas
- change in internal energy of the gas
- 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 ______
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 ____________.
In which of the following processes, beat is neither absorbed nor released by a system?
In an isothermal process, the volume of an ideal gas is halved. One can say that ____________.
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?
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?
In the figure shown here, the work done in the process ACBA is ______.
Explain the thermodynamic process.
When an inflated ballon is suddenly burst, why is the emerging air slightly cooled?
Explain how can a gas be expanded at constant temperature.
