partial combusion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
carbonisation of bituminous coal
passing steam over incandescent coke
passing air and a larg
✅ The correct answer is option D.
Thermodynamics MCQs
A definite area or a space where some thermodynamic process takes place is known as
thermodynamic system
thermodynamic cycle
thermodynamic process
thermodynamic law
✅ The correct answer is option A.
Which of the following has the highest calorific value?
Peat
Lignite
Bituminous coal
Anthracite coal
✅ The correct answer is option D.
One kg of carbon monoxide requires 4/7 kg of oxygen and produces
11/3 kg of carbon dioxide gas
7/3 kg of carbon monoxide gas
11/7 kg of carbon dioxide gas
8/3 kg of carbon monox
✅ The correct answer is option C.
Second law of thermodynamics defines
heat
work
internal energy
entropy
✅ The correct answer is option D.
The mass of excess air supplied is equal to
x Mass of excess carbon
x Mass of excess oxygen
x Mass of excess carbon
x Mass of excess oxyg
✅ The correct answer is option D.
The heat absorbed during a polytropic process is
x Workdone
all of these
✅ The correct answer is option D.
The absolute zero pressure will be
when molecular momentum of the system becomes zero
at sea level
at the temperature of – 273 K
at the centre of the e
✅ The correct answer is option A.
The bomb calorimeter is used for finding the __________ calorific value of solid and liquid fuels.
higher
lower
✅ The correct answer is option A.
Charles’ law states that all perfect gases change in volume by __________ of its original volume at 0° C for every 1° C change in temperature, when pressure remains constant.
1/27th
1/93th
1/173th
1/273th
✅ The correct answer is option D.