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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Keeping the pressure constant, to double the volume of a given mass of an ideal gas at 27°C, the temperature should be raised to __________ °C.

540
270
300
327

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Chemical Engineering Thermodynamics
Grams of butane (C₄H₁₀) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be

1160
580
640
Data insufficient; can't be computed

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Chemical Engineering Thermodynamics
During a reversible isothermal expansion of an ideal gas, the entropy change is

-ve
+ve
∞

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Chemical Engineering Thermodynamics
Mollier diagram is a plot of

Temperature vs. internal energy
Entropy vs. enthalpy
Temperature vs. enthalpy
Temperature vs. enthalpy

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Chemical Engineering Thermodynamics
Adiabatic compression of a saturated water vapour makes it

Supersaturated
Neither A nor B
Both A and B
Superheated

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Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Heating
Simultaneous pressure & temperature change
Both B and C
Cooling

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