Exercise: Thermodynamics

Questions for: Thermodynamics

One kg of ethylene (C2H4) requires 2 kg of oxygen and produces 22/7 kg of carbon dioxide and __________ kg of water or steam.
A:
9/7
B:
11/7
C:
7/4
D:
11/4
Answer: A
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The absolute zero pressure can be attained at a temperature of
A:
0°C
B:
273°C
C:
273 K
D:
none of these
Answer: D
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The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as
A:
element
B:
compound
C:
atom
D:
molecule
Answer: D
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The efficiency of Otto cycle depends upon the specific heats of the working substance.
A:
Yes
B:
No
C:
D:
Answer: B
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The standard value of atmospheric pressure taken at sea level is
A:
1.013 bar
B:
760 mm of Hg
C:
1013 x 102 N/m2
D:
all of these
Answer: D
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