Discussion
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- Question
The unit of power in S.I. units is kilowatt.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The molecular mass expresssed in gram (i.e. 1 g - mole) of all gases, at N. T. P., occupies a volume of
Options- A. 0.224 litres
- B. 2.24 litres
- C. 22.4 litres
- D. 224 litres Discuss
- 2. Carnot cycle consists of
Options- A. two constant volume and two isentropic processes
- B. two isothermal and two isentropic processes
- C. two constant pressure and two isentropic processes
- D. one constant volume, one constant pressure and two isentropic processes Discuss
- 3. When a gas is heated, change takes place in
Options- A. pressure
- B. volume
- C. temperature
- D. all of these Discuss
- 4. The heating of a gas at constant pressure is governed by Charles' law.
Options- A. True
- B. False Discuss
- 5. Coke is produced
Options- A. when coal is first dried and then crushed to a fine powder by pulverising machine
- B. from the finely ground coal by moulding under pressure with or without a binding material
- C. when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel
- D. by heating wood with a limited supply of air to a temperature not less than 280°C Discuss
- 6. The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by
Options- A. Kelvin
- B. Joule
- C. Clausis
- D. Gay-Lussac Discuss
- 7. The absolute pressure of a given mass of a perfect gas varies inversely as its volume, when the temperature remains constant. This statement is known as Boyle's law.
Options- A. Yes
- B. No Discuss
- 8. The smallest quantity of a substance, which can exist by itself in a chemically recognizable form is known as
Options- A. element
- B. compound
- C. atom
- D. molecule Discuss
- 9. Otto cycle consists of
Options- A. two constant volume and two isentropic processes
- B. two constant pressure and two isentropic processes
- C. two constant volume and two isothermal processes
- D. one constant pressure, one constant volume and two isentropic processes Discuss
- 10. The heating of gas at constant volume is governed by
Options- A. Boyle's law
- B. Charles' law
- C. Gay-Lussac law
- D. Avogadro's law Discuss
Thermodynamics problems
Search Results
Correct Answer: 22.4 litres
Correct Answer: two isothermal and two isentropic processes
Correct Answer: all of these
Correct Answer: True
Correct Answer: when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel
Correct Answer: Clausis
Correct Answer: Yes
Correct Answer: molecule
Correct Answer: two constant volume and two isentropic processes
Correct Answer: Gay-Lussac law
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