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Chemistry

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Helen O'Kon

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Cards in this guide (11)
A cat with two kittens are sleeping or A cat with two kittens is sleeping.

'with two kittens' describe the cat. So, you should write 'is sleeping'. But if you mean that all three of them are sleeping, write 'A cat and his two kittens are sleeping'.

How does temperature affect the spontaneity of a reaction

if H and S have the same sign the temperature will determine spontaneity

What would cause entropy to increase in a reaction

The products becoming more spread out.

What does it mean for heat to be transferred by convection

Energy is transferred through moving currents of warmer air or liquid.

How does the ocean affect coastal climate

the specific heat keeps the ocean temperatures more even

What information does Gibbs free energy give about a reaction

It tells if the reaction will process spontaneously or not

How is stoichiometry used to calculate energy released when a mass of liquid freezes

Grams liquid × mol/g × Hfusion

What is the value for G at 300 K if H 27 kJmol and S 0.09 kJmolK

G = 0 kJ/mol

What can be said about a reaction with H 620 kJmol and S -0.46 kJ molK

it can never be spontanious

What phase has the lowest entropy

solid-apex

What volume of water can be boiled by 3 kJ of energy

1.3 ml

(Apex's answer)

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