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Wednesday, August 26, 2020

National Level Quiz CHEMICAL ENERGY | Get Certificate | Free Certificate With in 2 Min




National Level Quiz CHEMICAL ENERGY | Get Certificate | Free Certificate With in 2 Min

 

Question : 1. The only by-product of fuel cell is_______________ 

Answer : B. water

 

Question : 2. The product of the reactants i.e. hydrogen and oxygen, is 

Answer : A. water

 

Question : 3. One advantage of fuel cell is that it is______________ 

Answer : B. pollution free

 

Question : 4. Compared to combustion engines, the fuel cells are 

Answer : C. more efficient

 

Question : 5. The conversion of energy takes place by reacting two elements i.e. 

Answer : A. hydrogen and oxygen

 

Question : 6. Which of the following is not the type of energy? 

Answer : c) Entropy

 

Question : 7. Which of the following process P-V work in highest? 

Answer : a) Second derivative is negative

 

Question : 8. An object is moved from one position to another with a specific force, what type of work is it? 

Answer : c) Mechanical Work

 

Question : 9. Which one of the following statements regarding energy is false? 

Answer : c) The energy stored in chemical bonds is referred to as kinetic energy

 

Question : 10. An object is moved at a distance of 10 m with the force of 5 N, what is the work done by the force? 

Answer : b) 50 Joule

 

Question : 11. An object moved forward 10 meters and then comes back 5 meter all with a constant force of 5 N, what is the work done by the force? 

Answer : b) 25 Joule

 

Question : 12. A piston cylinder is compressed with some pressure, what is the work done on the system? 

Answer : a) Positive

 

Question : 13. A piston cylinder expands with some pressure, what is the work done by the system? 

Answer : a) Positive

 

Question : 14. You shake a thermos so that the temperature of tea inside increases by 2 degree C, if you transferred Q amount of heat to the thermos, which of the following satisfies Q? 

Answer : c) Q = 0 

 

Question : 15. A piston cylinder contracts from 10 Liter to 5 Liter with an external pressure of 10 Pa, what is the work done on the system? 

Answer : d) 50 mJ

 

Question : 16. A piston cylinder expands from 7 liter to 15 liter with the external pressure of 500 Pa, what is the work done by the system? 

Answer : d) 4 Joule

 

Question : 17. A piston cylinder expands from 8 liter to 12 liter with the external pressure of 900 Pa, what is the work done on the system? 

Answer : b) – 3.6 Joule

 

Question : 18. Ratio heat transferred from 37 degree C to a colder body and from that body to – 11 degree C is 2, what is the temperature of colder body if surface areas are same for all bodies? 

Answer : a) – 5 degree C

 

Question : 19. Temperature of a system is increased with no change in internal energy, if the work done by the system is 10 Joule, what amount of heat is taken out from the system? 

Answer : b) – 10 J

 

Question : 20. Q amount of heat is transferred to a system, which of the following is correct? 

Answer : a) Q > 0

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