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Energetics and Thermodynamics A2

Last updated about 6 years ago

17 questions

2

4

2

Question 1

1.

Complete the table.

1

1

Question 4

4.

Suggest the trend in the first electron affinity of the elements in Group 17. Explain your answer.

Question 5

5.

Use the equation and the data given in the table to calculate ΔGo for the reaction at 25 °C.

4

Question 6

6.

2

Question 7

7.

Use the data in the table to calculate the standard enthalpy change for reaction 1.

2

Question 8

8.

Calculate entahlpy change of formation of HCO3-(aq)

1

2

2

3

Question 12

12.

Describe and explain the variation in the thermal stabilities of the carbonates of the Group 2
elements.

1

1

1

3

Question 16

16.

Calculate lattice energy.

1

Question 2

2.

Explain why ΔH4 is greater than ΔH3.

Question 3

3.

What names are given to the enthalpy changes ΔH6 and ΔH7?

Question 9

9.

Calculate standard enthalpy change for reaction 3.

Question 10

10.

Explain your answer.

Question 11

11.

Suggest with reason.

Question 13

13.

Suggest and explain a reason why sodium carbonate is more stable to heat than magnesium carbonate.

Question 14

14.

Write equation for decomposition.

Question 15

15.

Which one will decompose at lower temperature? Explain your answer.

Question 17

17.

Give reason for your answer.