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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
Dry ice is

Solid carbon dioxide
None of these
Moisture free ice
Solid helium

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Chemical Engineering Thermodynamics
Which of the following equations is obtained on combining 1st and 2nd law of thermodynamics, for a system of constant mass?

Tds = dE - PdV
DQ = CpdT + Vdp
DE = Tds - PdV
DQ = CvdT + PdV

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Chemical Engineering Thermodynamics
Generation of heat by friction is an example of a/an __________ change.

Adiabatic
Irreversible
Reversible
Isothermal

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Chemical Engineering Thermodynamics
When a gas in a vessel expands, its internal energy decreases. The process involved is

Adiabatic
Irreversible
Isothermal
Reversible

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Chemical Engineering Thermodynamics
If atmospheric temperature and dew point are nearly equal, then the relative humidity is

Zero
50%
Unpredictable
Almost 100%

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Chemical Engineering Thermodynamics
The efficiency of an Otto engine compared to that of a diesel engine, for the same compression ratio will be

Data insufficient to predict
Same
Less
More

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