Thermodynamic Processes and Indicator Diagrams

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Thermodynamic Processes and Indicator Diagrams: Overview

This topic covers concepts such as Indicator Diagrams, Cyclic Process, Non-cyclic process, Quasi-static Process, Reversible and Irreversible Processes, Isobaric Process and Its Equation of State, Isochoric Process and Its Equation of State, etc.

Important Questions on Thermodynamic Processes and Indicator Diagrams

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The internal energy of a gas during isothermal expansion

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The internal energy of a prefect gas does not change during 

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The thermodynamic process in which the pressure of the system remains contant is called 

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Two identical samples of gas are allowed to expand i isothermally and ii adiabatically. The amount of work done id then

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Compressed air coming out of punctured football becomes cooler because of

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A long cylindrical pipe of radius 20 cm is closed at its upper end and has an airtight piston of negligible mass as shown. When a 50 kg mass is attached to the other end of the piston, it moves down. If the air in the enclosure is cooled from temperature T to T-ΔT, the piston moves back to its original position. Then ΔT/T is close to (Assuming air to be an ideal gas, g=10 m s-2, atmospheric pressure is 105 Pa )

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Which of the following statements about the P-V diagram of an ideal gas of fixed number of particles is incorrect?

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In a non cyclic process, which of the following statement is correct?

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Quasi-static process is : 

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Quasi-static process is a very slow process.

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Define a Quasi-static process.

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From the given options, using which variables for X and Y -axis we can make an isotherm graph?

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One mole of an ideal gas expands adiabatically at constant pressure such that its temperature T1V. The value of the adiabatic constant of gas is 

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One mole of an ideal monatomic gas is compressed isothermally in a rigid vessel to double its pressure at room temperature, 27oC. The magnitude of work done on the gas will be:

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During adiabatic change, specific heat is 

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The given diagram shows four processes i.e., isochoric, isobaric, isothermal and adiabatic. The correct assignment of the processes, in the same order is given by:

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A thermodynamic system undergoes cyclic process ABCDA as shown in the figure. The work done by the system is,

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Find the amount of work done to increase the temperature of one mole of ideal gas by 30°C, if it is expanding under the condition VT23.(R=8.31J mol-1 K1)

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In thermodynamics, find no heat is removed or added in an adiabatic process.

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A spherical bubble inside water has radius R. Take the pressure inside the bubble and the water pressure to be P0. The bubble now gets compressed radially in an isothermal manner so that its radius become (R-a). For a<<R, the magnitude of work done in the process is given by 4πP0Ra2x2 where x is a constant. Find x.