ECAT Chemistry Thermochemistry Online Test

Chemistry Thermochemistry MCQS Online Test

ECAT Chemistry Thermochemistry Chapter Online Test

Total Questions: 108
Time Allowed: 60 Minutes
Total Marks: 108
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Chemistry Thermochemistry Test

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Chemistry

1. All the naturally occurring processes proceed spontaneously in a direction which lead to

2. The unit which indicates the largest amount of energy is

3. When a bond breaks

4. Which of the following is not correct?

5. Reaction in which heat is evolved

6. The bond dissociation energies of H₂, CL₂ and HCl are 104, 58 and 103 kcal respectively. The enthalpy of formation of HCl gas will be

7. In general, for exothermic reactions to be spontaneous

8. The value of ∆Hо₋н is 109 kcal mol¯¹. Then formation of one mole of water in gaseous state form H(g) and O(g) is accompanied by

9. The S.I unit of heat and energy is

10. If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air

11. The energy required to break 1 mole of bonds to form neutral atom is

12. If internal energy of the system is increased

13. The enthalpies of combustion of carbon and carbon monoxide are -390 kJ mol¯¹ and -278 kJ mol¯¹ respectively. The enthalpy of formation of carbon monoxide is

14. Change in enthalpy of a system can be calculated by following relationship

15. The molar heat capacity of water at constant pressure, Cᵨ, is 75 JK¯¹ mol¯¹. When 1.0 kJ of heat is supplied to 100 g of water which is free to expand, the increase in temperature of water is

16. Which of the following statement is contrary to first law of thermodynamics?

17. Two fundamental ways to transfer energy are

18. If internal energy of a system is increased

19. In order to decompose 9 g of water 142.5 kJ of heat is required. Hence enthalpy of formation of water is

20. Which one is not a state function?

21. The law of Lavoisier and Laplace illustrates

22. Which type of reactions cannot occur spontaneously?

23. The reason of kinetic energy of the molecules of a gaseous substance among the following is

24. Choose the S.I units for molar heat capacity among the following

25. In measurement of melting point of solid, the leaker used will be


 

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