Chemical Engineering Thermodynamics
Boyle's law for gases states that

P ∝ 1/V, when temperature & mass of the gas remain constant
P ∝ V, at constant temperature & mass of the gas
P/V = constant, for any gas
P ∝ 1/V, when temperature is constant

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Chemical Engineering Thermodynamics
The second law of thermodynamics states that

The energy change of a system undergoing any reversible process is zero
The total energy of system and surrounding remains the same
It is not possible to transfer heat from a lower temperature to a higher temperature
None of these

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