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प्रश्न
State the assumptions made for thermodynamic processes.
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उत्तर
Assumptions made for studying various thermodynamic processes:
- The majority of the thermodynamic processes are reversible. That is, they are quasi-static in nature. They are extremely slow and the system undergoes an infinitesimal change at every stage except the adiabatic processes. The system is, therefore, in thermodynamic equilibrium during all the changes.
- The system involved in all the processes is an ideal gas enclosed in a cylinder having a movable, frictionless, and massless piston.
- The ideal gas equation is applicable to the system.
संबंधित प्रश्न
Explain why The climate of a harbour town is more temperate than that of a town in a desert at the same latitude.
Draw a p-V diagram of the reversible process.
Draw a p-V diagram showing positive work with varying pressure.
Draw a p-V diagram showing negative work with varying pressure.
Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure.
Explain work done during a thermodynamic process.
Explain the thermodynamics of the isobaric process.
In an isochoric process, we have ____________.
Give the equation of state for an isothermal process.
Give the equation of state for an adiabatic process.
Draw the PV diagram for the adiabatic process.
What is a cyclic process?
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?
What are the limitations of the first law of thermodynamics?
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)
A thermodynamic system undergoes cyclic process ABCDA as shown in the figure. The work done by the system is ______
A monoatomic gas of pressure p having volume V expands isothermally to a volume 2V and then adiabatically to a volume 16V. The final pressure of the gas is ____________.
`("ratio of specific heats" = 5/3)`
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) ____________.
In which of the following processes, beat is neither absorbed nor released by a system?
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.
Give any two types of a thermodynamic process.
In the figure shown here, the work done in the process ACBA is ______.
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 ______.
In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.
