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Engineering Thermodynamics

Engineering Thermodynamics
The heat and mechanical energies are mutually convertible. This statement was established by

None of these
Joule
Charles
Boyle

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Engineering Thermodynamics
Heat and work are

Path functions
Point functions
System properties
Intensive properties

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Engineering Thermodynamics
Charles' law states that all perfect gases change in volume by __________ of its original volume at 0°C for every 1°C change in temperature, when pressure remains constant.

1/273th
1/27th
1/173th
1/93th

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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)

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

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Engineering Thermodynamics
The ultimate analysis of coal consists of the determination of the percentage of

Hydrogen and nitrogen
All of the listed here
Carbon
Sulphur and ash

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Engineering Thermodynamics
When the expansion or compression takes place according to the law pvn = C, the process is known as

Adiabatic process
Polytropic process
Hyperbolic process
Isothermal process

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