Chemistry Chemical Energetics Test Online Mcqs Preparation

Chemistry Chemical Energetics Test Online Mcqs Preparation With Answers Start Below

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Question 1 of 15

1. A hypothetical reaction X → 2Yproceeds by the following sequence of steps:
1/2X → Z   ∆H = q1Z → 2W     ∆H = q2W → 1/2Y   ∆H = q3The values for the ∆H of the reaction is
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. During an exothermic or endothermic reaction which one of the following formula is used to calculate the amount of heat evolved or absorbed
A.
B.
C.
D.

Question 2 of 15

Question 3 of 15

3. Which of the following has positive value of enthalpy:
A.
B.
C.
D.

Question 3 of 15

Question 4 of 15

4. NaOH + HCl   →   NaCl + H2O
Enthalpy change in the above reaction is called
A.
B.
C.
D.

Question 4 of 15

Question 5 of 15

5. What is correct about heat of combustion:
A.
B.
C.
D.

Question 5 of 15

Question 6 of 15

6. Calories is equivalent to
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. The lattice energy of NaCl is
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. The heat of reaction depends upon:
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

9. The measurement of enthalpy change at standard conditions means that we should manage the measurement that
A.
B.
C.
D.

Question 9 of 15

Question 10 of 15

10. Total heat content of a system is called
A.
B.
C.
D.

Question 10 of 15

Question 11 of 15

11. Most of the reactions which give stable products are
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. The enthalpy of formation of a compound is:
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. The enthalpy change for the reaction C2H2 + 5/2 O2 → 2CO2 + H2O is brown as enthalpy of
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. Hess’s law in analogous to:
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

15. A state function which describes together the internal energy and product of pressure and volume is called
A.
B.
C.
D.

Question 15 of 15


 

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