The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

Engineering Thermodynamics
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

Less than one

Greater than one

None of these

Equal to one

Less than one

Greater than one

None of these

Equal to one

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Engineering Thermodynamics
The main cause for the irreversibility is

All of these

Mechanical and fluid friction

Unrestricted expansion

Heat transfer with a finite temperature difference

All of these

Mechanical and fluid friction

Unrestricted expansion

Heat transfer with a finite temperature difference

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Engineering Thermodynamics
The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Flow processes

Non-flow processes

Adiabatic processes

None of the listed here

Flow processes

Non-flow processes

Adiabatic processes

None of the listed here

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Engineering Thermodynamics
Carbonization of coal consists of

Heating the wood with a limited supply of air to temperature not less than 280°C

None of these

Moulding the finely ground coal under pressure with or without a binding material

Drying and crushing the coal to a fine powder

Heating the wood with a limited supply of air to temperature not less than 280°C

None of these

Moulding the finely ground coal under pressure with or without a binding material

Drying and crushing the coal to a fine powder

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

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

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

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Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at

500° to 700°C

700° to 900°C

900° to 1100°C

300° to 500°C

500° to 700°C

700° to 900°C

900° to 1100°C

300° to 500°C

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Engineering Thermodynamics

Engineering Thermodynamics The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

Engineering Thermodynamics The main cause for the irreversibility is

Engineering Thermodynamics The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Engineering Thermodynamics Carbonization of coal consists of

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

Engineering Thermodynamics The hard coke is obtained when carbonization of coal is carried out at

Engineering Thermodynamics
The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is

Engineering Thermodynamics
The main cause for the irreversibility is

Engineering Thermodynamics
The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Engineering Thermodynamics
Carbonization of coal consists of

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

Engineering Thermodynamics
The hard coke is obtained when carbonization of coal is carried out at