Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry A-Level OCR A Y > module 3: 9.4 Hess' law and enthalpy cycles > Flashcards

module 3: 9.4 Hess' law and enthalpy cycles Flashcards

3.2.1 Hess' law and enthalpy cycles

You may prefer our related Brainscape-certified flashcards:
Periodic Table flashcards Chemistry 101 flashcards AP® Chemistry flashcards Organic Chemistry 101 flashcards
1
Q

Direction of arrows in enthalpy change of combustion

A

Down

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Direction of arrows in enthalpy change of formation

A

Upwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Enthalpy changes of formation formula

A

Sum of delta formation H PRODUCTS - Sum of delta formation H REACTANTS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Enthalpy changes of combustion formula

A

Sum of delta formation H REACTANTS - Sum of delta formation H PRODUCTS

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is Hess’s law

A

The total enthalpy change of a reaction is always the same, no matter which route is taken

How well did you know this?
1
Not at all
2
3
4
5
Perfectly

Chemistry A-Level OCR A Y (38 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions