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# In adjoining P - V diagram, $100J$ of heat is given in taking a system from A to C along the path ADC and $50J$ of work is done by the system in this path. How much heat will be absorbed or given out if the work done on the system alone the cured path from C to A is $15J$?A) $-{\text{ }}65{\text{ }}J$.B) $-{\text{ 7}}5{\text{ }}J$C) $-{\text{ 9}}5{\text{ }}J$D) $-{\text{ 11}}5{\text{ }}J$

Last updated date: 20th Jun 2024
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Hint:A curve showing variation of volume of substance taken along the X axis and the variation of pressure taken along Y axis is called an indicator diagram.

In the adjoining pressure and volume graph of an ideal gas is shown.
-The p-v diagram shows the feature of an idealized.
-The path between each state taking some process from A to D.
-The P –V diagram is taking the ABCD Path.
-From A to C along the path ADC, $100J$ of heat is given in taking a system.
-In this path $50J$ of work is done by the system.
-The work done on the system along the curved path from C to A is $15J$
Therefore, the heat will be absorbed or given out value is $- 65J$.

So, the correct answer is option (A).