Advertisements
Advertisements
Question
State the assumptions made for thermodynamic processes.
Advertisements
Solution
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.
RELATED QUESTIONS
Give an example of some familiar process in which heat is added to an object, without changing its temperature.
Heating a gas in a constant volume container is an example of which process?
Draw a p-V diagram of the reversible process.
Differentiate between the reversible and irreversible 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 ЁЭЫ╛ = 1.4)
When a cycle tyre suddenly bursts, the air inside the tyre expands. This process is ____________.
In an isochoric process, we have ____________.
Draw the PV diagram for the isobaric process.
Draw the PV diagram for the isochoric 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?
Explain in detail the isothermal process.
Explain in detail an adiabatic process.
Derive the work done in an adiabatic process.
Explain the isobaric process and derive the work done in this process.
An ideal gas is taken in a cyclic process as shown in the figure. Calculate
- work done by the gas
- work done on the gas
- Net work done in the process
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 ____________.
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,
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 ____________.
In an isothermal process, the volume of an ideal gas is halved. One can say that ____________.
Which of the following processes is reversible?
Give any two types of a thermodynamic process.
In the figure shown here, the work done in the process ACBA is ______.
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.
In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.
