Advertisements
Advertisements
प्रश्न
Explain the cyclic process.
Explain cyclic process with the help of neat and labelled p-V diagram.
Advertisements
उत्तर
- A thermodynamic process that returns a system to its initial state is cyclic.
- In this process, the initial and the final states are the same.
- For a cyclic process, the total change in the internal energy of a system is zero. (ΔU = 0).
- According to the first law of thermodynamics, we have, for a cyclic process, Q = W
- The given figure shows the p-V diagram of a cyclic process, which is a closed loop.
p-V diagram of cyclic process - Working of all heat engines is a cyclic process.
APPEARS IN
संबंधित प्रश्न
Answer in brief.
Why should a Carnot cycle have two isothermal two adiabatic processes?
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?
What is a thermodynamic process?
Draw a p-V diagram of the irreversible process.
Draw a p-V diagram showing positive work with varying pressure.
State the assumptions made for thermodynamic 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)
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)
Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure.
Explain the thermodynamics of the isochoric process.
Give the equation of state for an isothermal process.
Apply first law for an adiabatic process.
Give the equation of state for an adiabatic process.
Give an equation state for an isochoric process.
What is meant by a reversible and irreversible processes?
Explain in detail the isochoric process.
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 ____________.
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?
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?
Ideal gas for which 'ϒ' = 1.5 is suddenly compressed to `1/4`th of its initial volume. The ratio of 4 the final pressure to the initial pressure is ______.
`(ϒ = "C"_"p"/"C"_"v")`
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)
Give any two types of a thermodynamic process.
In the figure shown here, the work done in the process ACBA is ______.
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 ______.
