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Method 2 of W In the given p-V diagram...

Method 2 of W
In the given p-V diagram, find

(a) pressures at c and d
(b) work done in different processes separately
(c) work done in complete cycle abcd.

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The correct Answer is:
A, B, C, D
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Work is the mose of transfrence of energy. If the system involves gaseous substance and there is difference of pressure between system and surroundings, such a work is referred to as pressure - volume work (W_(PV)= -P_(ext)DeltaV) . It has been observed that reversible work done by the system is the maximum obtainable work. w_(rev) gt w_(ir r) The works of isothermal and adiabatic processes are different from each other. for isothermal reversible proces, W_("isothermal reversible")=2.303 nRT log_(10) (V_(2)/V_(1)) W_("adiabatic reversible")=C_(V) (T_(1)-T_(2)) A thermodynamic system goes in acyclic process as represented in the following P-V diagram: 1. For an ideal gas, consider only P-V work in going from an initial state The net work done during the complete cycle is given by the area:

DC PANDEY-LAWS OF THERMODYNAMICS-Level 2 Subjective
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  6. A cylinder of ideal gas is closed by an 8kg movable piston of area 60c...

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  8. Two moles of helium gas(lambda=5//3) are initially at temperature 27^@...

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  9. An ideal monoatomic gas is confined in a cylinder by a spring-loaded p...

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  10. An ideal diatomic gas (gamma=7/5) undergoes a process in which its int...

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  11. For an ideal gas the molar heat capacity varies as C=CV+3aT^2. Find th...

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  12. One mole of an ideal monatomic gas undergoes the process p=alphaT^(1//...

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  13. One mole of a gas is put under a weightless piston of a vertical cylin...

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  14. An ideal monatomic gas undergoes a process where its pressure is inver...

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  15. The volume of one mode of an ideal gas with adiabatic exponent gamma i...

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  16. Two moles of a monatomic ideal gas undergo a cyclic process ABCDA as s...

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  17. Pressure p, volume V and temperature T for a certain gas are related b...

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  18. An ideal gas has a specific heat at constant pressure Cp=(5R)/(2). The...

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