Exercise: Thermodynamics

Questions for: Thermodynamics

Producer gas is obtained by
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
Answer: A
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For a perfect gas, according to Boyle's law (where p = Absolute pressure, v = Volume, and T = Absolute temperature)
A:
p v = constant, if T is kept constant
B:
v/T = constant, if p is kept constant
C:
p/T = constant, if v is kept constant
D:
T/p = constant, if v is kept constant
Answer: A
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Otto cycle is also known as
A:
constant pressure cycle
B:
constant volume cycle
C:
constant temperature cycle
D:
constant temperature and pressure cycle
Answer: B
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Hydrogen is the __________ substance.
A:
lightest
B:
heaviest
C:
D:
Answer: A
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The gas constant (R) is equal to the __________ of two specific heats.
A:
sum
B:
difference
C:
product
D:
ratio
Answer: B
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