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Engineering Thermodynamics

Engineering Thermodynamics
The heating of a gas at constant pressure is governed by

Boyle's law
Gay-Lussac law
Avogadro's law
Charles' law

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Engineering Thermodynamics
The unit of time in S.I. units is

Second
Day
Minute
Hour

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Engineering Thermodynamics
The polytropic index (n) is given by

log (p1p2)/log (v1v2)
log (p2/ p1)/log (v1/ v2)
log [(p1v1)/(p2v2)]
log (v1/ v2)/ log (p1/p2)

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Engineering Thermodynamics
The general gas energy equation is (where Q1 - 2 = Heat supplied, dU = Change in internal energy, and W1 - 2 = Work done in heat units)

Q1 - 2 = dU - W1 - 2
Q1 - 2 = dU + W1 - 2
Q1 - 2 = dU/W1 - 2
Q1 - 2 = dU × W1 - 2

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Engineering Thermodynamics
Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant

Temperature
Pressure
Internal energy
Volume

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Engineering Thermodynamics
The pressure of a gas in terms of its mean kinetic energy per unit volume 'E' is equal to

E/3
3E/4
2E/3
E/2

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MORE MCQ ON Engineering Thermodynamics

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