Born Haber Cycle

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Chemistry

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10th Grade

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Angela Toh

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8 Slides • 12 Questions

Born Haber Cycle

By Angela Toh

Multiple Choice

The enthalpy change when 1 mole of a compound is formed from its elements in their standard states under standard conditions. This is the enthalpy of.....

Combustion

Formation

Lattice breaking

Ionisation

Multiple Choice

Which of the equation below refers to the standard enthalpy of formation, ΔH_f^o?

Na(g) ---> Na⁺(g) + e^-ΔH= -364 kJmol^-1

C₂H₅OH (l) + 3O₂(g) ---> 2 CO₂(g) + 3H₂O (l)ΔH= - 1286 kJmol^-1

2C (s) + 2H₂(g) ---> C₂H₄ (g)ΔH= - 52.3 kJmol^-1

Na⁺(g) ---> Na⁺(aq) ΔH= - 364 kJmol^-1

Multiple Choice

Diagram below shows

Standard lattice enthalpy

Standard enthalpy of precipitation

Standard enthalpy of formation

Standard enthalpy of hydration

Multiple Choice

The enthalpy change when 1 mole of 1+ ions is formed from 1 mole of gaseous atoms.

Lattice breaking

Atomisation

Ionisation

Formation

Multiple Choice

Mg (g) --> Mg+ (g) + e-

Ionisation

Combustion

Formation

Hydration

Multiple Choice

Mg (s) --> Mg (g)

Ionisation

Combustion

Formation

Atomisation

Multiple Choice

Which equation represents the process that occurs when the standard enthalpy of atomisation of iodine is measured?

½ I₂(s) → I (g)

I₂(s) → 2I (g)

½ I₂(g) → I (g)

I₂(g) → 2I (g)

Multiple Choice

First electron affinity of an element is usually ________ and second electron affinity is ____________.

exothermic, endothermic.

exothermic, exothermic.

endothermic, endothermic.

endothermic, exothermic.

Multiple Choice

Identify the enthalpy change represented by letter g.

Enthalpy of formation

Enthalpy lattice of formation

Electron affinity of bromine

Enthalpy of atomisation of zinc

Multiple Choice

What enthalpy change does the number 4 represent?

Formation

1^st ionisation energy of Na

1^st electron affinity of Na

Atomisation of Na

Multiple Choice

Enthalpy change is represented by step y ?

Enthalpy of formation calcium bromide

Enthalpy of atomisation of calcium

1^st electron affinity of bromine

Enthalpy of atomisation of bromine

Multiple Choice

Calculate the enthalpy change represented by X

+695kJ/mol

-695kJ/mol

-635kJ/mol

Born Haber Cycle

By Angela Toh

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