Advertisements
Advertisements
प्रश्न
In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.
पर्याय
ΔU = Q
Q = 0
W = 0
W = Q
Advertisements
उत्तर
In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then W = Q.
Explanation:
In a cyclic process, the system returns to its initial state at the end of the cycle. Since the internal energy (ΔU) depends only on the state of the system, the change in internal energy over one complete cycle is:
ΔU = 0
From the first law of thermodynamics:
Substituting ΔU = 0
Q = W
Thus, in a cyclic process, the heat supplied to the system (Q) is equal to the work done by the system (W).
APPEARS IN
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
Answer in brief.
Why should a Carnot cycle have two isothermal two adiabatic processes?
For work done to be reversible, the process should be ______
What is a thermodynamic process?
Draw a p-V diagram of the reversible process.
Draw a p-V diagram of the irreversible process.
Draw a p-V diagram showing positive work with varying pressure.
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.
When a cycle tyre suddenly bursts, the air inside the tyre expands. This process is ____________.
Apply first law for an adiabatic process.
Apply first law for an isobaric process.
Draw the PV diagram for the adiabatic process.
Draw the PV diagram for the isobaric process.
Explain in detail the isothermal process.
Explain the isobaric process and derive the work done in this process.
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)
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
Among the amount of heat absorbed and the amount of work done by a system, ______
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 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.
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?
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")`
Which of the following processes is reversible?
Give any two types of a thermodynamic process.
In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100°C to 300°C will be ______ nR, where n denotes number of moles of a gas.
