Engineering Thermodynamics
When the gas is heated at constant volume, the heat supplied

Does some external work during expansion
Increases the internal energy of the gas and increases the temperature of the gas
Both (A) and (B)
None of these

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Engineering Thermodynamics
According to Avogadro’s law

All of these
The product of the gas constant and the molecular mass of an ideal gas is constant
The sum of partial pressure of the mixture of two gases is sum of the two
Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules

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Engineering Thermodynamics
Producer gas is obtained by

Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
Carbonization of bituminous coal
Passing air and a large amount of steam over waste coal at about 650°C
Passing steam over incandescent coke

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