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प्रश्न
Draw a p-V diagram showing positive work at constant pressure.
उत्तर
p-V diagram showing positive work at constant pressure:
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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?
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.
Draw a p-V diagram showing negative work with varying pressure.
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.
When you exercise in the morning, by considering your body as a thermodynamic system, which of the following is true?
In an isochoric process, we have ____________.
Apply first law for an isothermal process.
Apply first law for an isobaric process.
Draw the PV diagram for the isochoric process.
What is meant by a reversible and irreversible processes?
Derive the work done in an isothermal process.
Explain in detail an adiabatic process.
Derive the work done in an adiabatic process.
What are the limitations of the first law of thermodynamics?
Draw the TP diagram (P-x axis, T-y axis), VT(T-x axis, V-y axis) diagram for
- Isochoric process
- Isothermal process
- Isobaric process
In a petrol engine, (internal combustion engine) air at atmospheric pressure and temperature of 20°C is compressed in the cylinder by the piston to `1/8` of its original volume. Calculate the temperature of the compressed air. (For air γ = 1.4)
Consider the following cyclic process consist of isotherm, isochoric and isobar which is given in the figure.
Draw the same cyclic process qualitatively in the V-T diagram where T is taken along the x-direction and V is taken along the y-direction. Analyze the nature of heat exchange in each process.
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
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 ____________.
For an isothermal expansion of a perfect gas, the value of `(Delta "P")/"P"` is equal to ____________.
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?
Which of the following processes is reversible?
Explain how can a gas be expanded at constant temperature.
