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Energetics and Thermodynamics A2

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Last updated almost 6 years ago
17 questions
2
4
2
Question 1
1.

Complete the table.

1
Question 2
2.

Explain why ΔH4 is greater than ΔH3.

1
Question 3
3.

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
Question 9
9.

Calculate standard enthalpy change for reaction 3.

2
Question 10
10.

2
3
Question 12
12.

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

1
Question 13
13.

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

1
1
3
Question 16
16.

Calculate lattice energy.

1
Question 17
17.

Give reason for your answer.

What names are given to the enthalpy changes ΔH6 and ΔH7?
Explain your answer.
Question 11
11.

Suggest with reason.

Question 14
14.

Write equation for decomposition.

Question 15
15.

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