Engineering Thermodynamics
In a no flow reversible process for which p = (-3V + 15) × 105 N/m², V changes from 1 m3 to 2 m3. The work done will be about

10 × 10⁵ joules
1 × 10⁵ joules
100 × 10⁵ joules
10 × 10⁵ kilo joules

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Engineering Thermodynamics
In order that a cycle be reversible, following must be satisfied

All of these
When heat is being absorbed, temperature of hot source and working substance should be same
When beat is being rejected, temperature of cold source and working substance should be same
Free expansion or friction resisted expansion/compression process should not be encountered

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