AQA AS Chemistry Unit 2 3.2.1 Energetics

This is PowerPoint presentation which summarises chapter 7 of the AQA AS Chemistry textbook. 

I made this using my class notes the AQA AS Chemistry textbook and the specification.

I hope it helps!

If you have any queries or corrections just leave them in the comments and I'll try and help :)

Thanks **

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Enthalpy Change (H)
The amount of heat energy released or absorbed
when a chemical or physical change occurs at
constant pressure.
Standard enthalpy changes refer to standard
conditions, 100kPa and 298K.…read more

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The Sign of Enthalpy Change
Products
H is positive (Endothermic)
Reactants
H is negative (Exothermic)
Products…read more

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Standard Enthalpy of Formation (Hf
The enthalpy change when 1 mol of a compound is
formed from it's elements under standard
conditions, 100kPa and 298K, with all products and
reactants in their standard states.…read more

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Standard Enthalpy of Combustion (Hc
The enthalpy change when 1 mol of a compound is
completely burnt in oxygen under standard
conditions, 100kPa and 298K, with all reactants and
products in their standard states.…read more

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Calorimetry
Specific heat
Heat (J) capacity (JK-1g-1)
q=mcT
Change in
Mass of solution
temperature (K)
being heated (g)…read more

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