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. If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air will
A.
B.
C.
D.

Question 1 of 15

Question 2 of 15

2. 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 2 of 15

Question 3 of 15

3. Enthalpy of formation of one mole of ionic compound form gaseous ion under standard condition is called
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. The net heat change in the chemical reaction is the same whether it is brought about in two or more different ways in one or several steps. It is known as:
A.
B.
C.
D.

Question 6 of 15

Question 7 of 15

7. Change in enthalpy of ∆H a system can be calculated by following relationship
A.
B.
C.
D.

Question 7 of 15

Question 8 of 15

8. The value of ∆V being very small. The term P∆V can be neglected for process involving
A.
B.
C.
D.

Question 8 of 15

Question 9 of 15

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

Question 9 of 15

Question 10 of 15

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

Question 10 of 15

Question 11 of 15

11. What is not correct about ∆Hf
A.
B.
C.
D.

Question 11 of 15

Question 12 of 15

12. The enthalpies of all elements in their standard states are
A.
B.
C.
D.

Question 12 of 15

Question 13 of 15

13. The exothermic process is
A.
B.
C.
D.

Question 13 of 15

Question 14 of 15

14. The values of ∆H for the process I(g) + e-1  → I-1(g) is:
A.
B.
C.
D.

Question 14 of 15

Question 15 of 15

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

Question 15 of 15


 

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