Engineering Thermodynamics
The increase in entropy of a system represents

Decrease in pressure
Degradation of energy
Increase in availability of energy
Increase in temperature

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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
Passing steam over incandescent coke
Carbonization of bituminous coal
Passing air and a large amount of steam over waste coal at about 650°C

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Engineering Thermodynamics
Select the wrong statement

A Joule cycle consists of two constant volume and two isentropic processes.
An Otto cycle consists of two constant volume and two isentropic processes.
All of these
An Ericsson cycle consists of two constant pressure and two isothermal processes.

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