The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Engineering Thermodynamics
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Element

Compound

Atom

Molecule

Element

Compound

Atom

Molecule

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Engineering Thermodynamics
According to Kelvin-Planck’s statement of second law of thermodynamics,

It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

None of these

It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

It is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body

It is possible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

None of these

It is impossible to construct an engine working on a cyclic process, whose sole purpose is to convert heat energy into work

It is impossible to construct a device which operates in a cyclic process and produces no effect other than the transfer of heat from a cold body to a hot body

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Engineering Thermodynamics
Which of the following gas has a minimum molecular mass?

Nitrogen

Hydrogen

Oxygen

Methane

Nitrogen

Hydrogen

Oxygen

Methane

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

Reversible process

Irreversible process

Isothermal process

Adiabatic process

Reversible process

Irreversible process

Isothermal process

Adiabatic process

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Engineering Thermodynamics
The efficiency of Diesel cycle with decrease in cut-off

First decreases and then increases

Increases

Decreases

First increases and then decreases

First decreases and then increases

Increases

Decreases

First increases and then decreases

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Engineering Thermodynamics
The value of one bar (in S. I. units) is equal to

1 × 102 N/m2

1 × 104 N/m2

1 × 103 N/m2

1 × 105 N/m2

1 × 102 N/m2

1 × 104 N/m2

1 × 103 N/m2

1 × 105 N/m2

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Engineering Thermodynamics

Engineering Thermodynamics The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Engineering Thermodynamics According to Kelvin-Planck’s statement of second law of thermodynamics,

Engineering Thermodynamics Which of the following gas has a minimum molecular mass?

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

Engineering Thermodynamics The efficiency of Diesel cycle with decrease in cut-off

Engineering Thermodynamics The value of one bar (in S. I. units) is equal to

Engineering Thermodynamics
The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as

Engineering Thermodynamics
According to Kelvin-Planck’s statement of second law of thermodynamics,

Engineering Thermodynamics
Which of the following gas has a minimum molecular mass?

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

Engineering Thermodynamics
The efficiency of Diesel cycle with decrease in cut-off

Engineering Thermodynamics
The value of one bar (in S. I. units) is equal to