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chemistry > R1.2 - enthaly changes in reactions > Flashcards

R1.2 - enthaly changes in reactions Flashcards

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1
Q

What type of reaction is bond breaking?

A
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2
Q

What type of reaction is bond making?

A
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3
Q

What is bond enthalpy?

A
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4
Q

What is average bond enthalpy?

A
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5
Q

What is a covalent bond?

A
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6
Q

What is the relationship between bond enthalpy and bond length, amount of bonds and polarity?

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7
Q

How can you calculate bond enthalpy?

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8
Q

What is Hess’s Law?

A
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9
Q

What is standard enthalpy change of formation?

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10
Q

What is standard enthalpy change of combustion?

A
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11
Q

In what direction does Hess’s triangle face for enthalpies of combustion and formation?

A

Formation - Formed in Heaven - upwards
Combustion - Burned in Hell - downwards

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12
Q

When giving a question asking to calculate enthalpy of formation/combustion, but you are given the opposite values, which values should you use?

A

Use the values you are told and given

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13
Q

Why are standard enthalpy changes of formation calculations useful?

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14
Q

What are standard states?

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15
Q

What is the enthalpy change of formation for an element?

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16
Q

What is a Born-Haber cycle?

A
17
Q

What is first ionization energy?

A
18
Q

What is electron affinity?

A
19
Q

What is lattice enthalpy?

A
20
Q

What is enthalpy change of atomization?

A
21
Q

Why are experimental lattice enthalpies larger than theoretical lattice enthalpies?

A
22
Q

What type of reaction is lattice enthalpy?

A
23
Q

What type of reaction is enthalpy change of atomization?

A
24
Q

What type of reaction is enthalpy change of formation?

A
25
Q

What type of reaction is ionization enthalpy?

A
26
Q

What type of reaction is bond enthalpy?

A
27
Q

What type of reaction is first electron affinity?

A
28
Q

What type of reaction is second electron affinity?

A
29
Q

What is the relationship between bond enthalpy and enthalpy change of atomization?

A
30
Q

What is the trend between lattice enthalpy and ionic charge?

A
31
Q

What is the trend between lattice enthalpy and ionic charge?

A

chemistry (28 decks)

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