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Chemistry

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Marielle Crist

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Cards in this guide (7)
What is The amount of energy required to raise the temperature of one KG of a substance by one KG is determined by its

By its specific heat.

By its specific heat.

By its specific heat.

By its specific heat.

What could make G become negative at a given enthalpy and entropy

Changing the temperature

How does temperature affect spontaneity

If H and S have the same sign, the temperature will determine spontaneity.

Which statement describes a reaction at 298 K if H 31 kJ mol S 0.093 kJ molK

It is not spontaneous.

How is the delta Hvap used to calculate the mass of liquid boiled by 1 kj of energy

1kJ x 1/Hvap x g/mol liquid

How much energy is generated from freezing 2.5g water

0

If you need to multiply the following reaction by 2 to be an intermediate reaction in a Hess's law problem what would be the final value for the enthalpy of reaction you use for this intermediate reac

-572k

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