In the `P-V` diagram shown shown in figure `ABC` is a semicircle.The work done in the process `ABC` is A. `zero`B. `(pi)/(2) atm-L`C. `-(pi)/(2) atm-L`D. `4 atm-L`.

In the `P-V` diagram shown shown in figure `ABC` is a semicircle.The w

1.	In the `P-V` diagram shown shown in figure `ABC` is a semicircle.The work done in the process `ABC` is A. `zero`B. `(pi)/(2) atm-L`C. `-(pi)/(2) atm-L`D. `4 atm-L`.
Answer» Correct Answer - B `W_(AB)` is negative (volume is decreasing)and `W_(BC)` is positive (volume is increasing) and since, `\|W_(BC)\|gt\|W_(AB)\|` `:.` Net work done is positive and area between semicircle which is equal to `(pi)/(2)"atm"-L`.

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In the `P-V` diagram shown shown in figure `ABC` is a semicircle.The work done in the process `ABC` is A. `zero`B. `(pi)/(2) atm-L`C. `-(pi)/(2) atm-L`D. `4 atm-L`.

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