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Engineering Thermodynamics

Engineering Thermodynamics
The value of n = 1 in the polytropic process indicates it to be

Irreversible process
Reversible process
Adiabatic process
Isothermal process

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Engineering Thermodynamics
Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, γ = cp/cv, known as adiabatic index, and R = Gas constant)

cv/ cp =R
Both (B) and (C)
cv = R/ γ-1
cp - cv = R

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Engineering Thermodynamics
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from

Basic law of thermodynamics
First law of thermodynamics
Second law to thermodynamics
Zeroth low of thermodynamic

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Engineering Thermodynamics
Work done is zero for the following process

All of the listed here
Constant volume
Free expansion
Throttling

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Engineering Thermodynamics
If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to

Anywhere between zero and infinity
Zero
-ve
+ve

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Engineering Thermodynamics
The ratio of molar specific heats for mono-atomic gas is

1.87
1.67
1.4
1

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MORE MCQ ON Engineering Thermodynamics

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