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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
On opening the door of an operating refrigerator kept in a closed room, the temperature of the room will

Increase in summer and will decrease in winter
Increase
Remain same
Decrease

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Chemical Engineering Thermodynamics
Dry ice is

None of these
Moisture free ice
Solid carbon dioxide
Solid helium

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Chemical Engineering Thermodynamics
At normal boiling point, molar entropy of vaporisation is __________ Joule/K°.mole.

192
72
142
92

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Chemical Engineering Thermodynamics
In case of a close thermodynamic system, there is __________ across the boundaries.

None of these
No heat and mass transfer
Mass and energy transfer
No mass transfer but heat transfer

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Chemical Engineering Thermodynamics
1m³ of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be

154 K
274 K
174 K
35 K

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Chemical Engineering Thermodynamics
Entropy change of the reaction, H₂O(liquid) H₂O(gas), is termed as the enthalpy of

Formation
Solution
Vaporisation
Formation

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