Advertisements
Advertisements
Question
Draw a p-V diagram showing positive work at constant pressure.
Advertisements
Solution
p-V diagram showing positive work at constant pressure:

APPEARS IN
RELATED QUESTIONS
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 of the irreversible process.
Draw a p-V diagram showing positive 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)
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)
Explain graphically (i) positive work with varying pressure, (ii) negative work with varying pressure, and (iii) positive work at constant pressure.
Write a note on free expansion.
Explain work done during a thermodynamic process.
Explain the thermodynamics of the isobaric process.
Explain the thermodynamics of the isochoric process.
Draw the PV diagram for the isothermal process.
Draw the PV diagram for the isochoric process.
What is meant by a reversible and irreversible processes?
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 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 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,

Two identical samples of a gas are allowed to expand (i) isothermally (ii) adiabatically. Work done is ____________.
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 ____________.
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.
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 ______.

Explain how can a gas be expanded at constant temperature.
