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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
What happens in a reversible adiabatic expansion process?

Cooling takes place
Pressure is constant
Temperature is constant
Heating takes place

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Chemical Engineering Thermodynamics
A solid is transformed into vapour without going to the liquid phase at

Below triple point
Triple point
Boiling point
Always

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Chemical Engineering Thermodynamics
Water on heating from 1 to 4°C

Contracts
Expands
May contract or expand
Has same volume

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Chemical Engineering Thermodynamics
At 60° C, vapour pressure of methanol and water are 84.562 kPa and 19.953 kPa respectively. An aqueous solution of methanol at 60° C exerts a pressure of 39.223 kPa; the liquid phase and vapour phase mole fractions of methanol are 0.1686 and 0.5714 respectively. Activity co-efficient of methanol is

1.9398
1.572
4.238
3.389

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Chemical Engineering Thermodynamics
Rotary lime kiln is an example of a/an __________ system.

Closed
Open
Isolated
Non-thermodynamic

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Chemical Engineering Thermodynamics
What is the value of Joule-Thomson co-efficient for an ideal gas?

∞
-ve
+ve

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