Net work or heat in a cyclic process from its P-V diagram

1. A.
   $100\text{ }J$
2. B.
   $300\text{ }J$
3. C.
   Zero
4. D.
   $200\text{ }J$

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1. A.
   $61.6\text{ }J$
2. B.
   $431.2\text{ }J$
3. C.
   $616\text{ }J$
4. D.
   $19.6\text{ }J$

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1. A.
   $10\pi$
2. B.
   $5\pi$
3. C.
   zero
4. D.
   $40\pi$

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