Producer gas is obtained by partial combustion of coal, coke, anthracite coal or

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Question
Producer gas is obtained by
Options
A. partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
B. carbonisation of bituminous coal
C. passing steam over incandescent coke
D. passing air and a large amount of steam over waste coal at about 650�C

Correct Answer

partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast

Thermodynamics problems

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1. A process, in which the temperature of the working substance remains constant during its expansion or compression, is called
Options
A. isothermal process
B. hyperbolic process
C. adiabatic process
D. polytropic process

4. The total energy of a molecule is shared equally by the various degrees of freedom possessed by it. This law is known as
Options
A. law of equipartition of energy
B. law of conservation of energy
C. law of degradation of energy
D. none of these

8. When the expansion or compression takes place according to the law pvⁿ = C, the process is known as
Options
A. isothermal process
B. adiabatic process
C. hyperbolic process
D. polytropic process

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