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Chemistry

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Rachel Erdman

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3y ago
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Cards in this guide (14)
What is Gibbs Free energy

The usable energy released or absorbed by a reaction.

How many triangles in star of David

If it is in the form of two inverted triangles, then there are 8 triangles.

If only the outline is used, there are 0 triangles.

How does a substance change when its thermal energy changes

For example, when heat energy (thermal energy) is added to a substance, either its temperature will increase, or it will change its state (as when ice is melted).

How is the Hfusion used to calculate volume of liquid frozen that produces 1 kJ of energy

1kJ 1/Hfusion g/mol ml/g liquid

What happens when a glass of water is set in the sun until the water evaporates

Entropy increases.

What factors generally determine whether a reaction happens or not

Enthalpy and entropy.

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

G = 0 kJ/mol

What is the name of the field of study with laws that describe how energy is transferred to different locations and forms

Thermodynamics

How is the enthalpy of reaction related to the enthalpies of formation for the products and reactants

The difference between the enthalpy of formation of the products minus the enthalpy of formation of the reactants is the enthalpy of the reaction

What does q mean in the equation q equals ml

amount of heat energy

Which direction of the reaction is favored at 298 k room temperature use the reaction I2s I2g when H 62.4 kJ.mol-1 and S 0.145 kJ.mol-1.k-1

Gas phase Iodine in open cylinder

What statements about airplane and rocket flight is true

Only one requires air molecules to generate lift.

If an engineers greatest concern is specific impulse which type of fuel should she use

Liquid fuel

What equation indicates an endothermic equation

An endothermic reaction occur with heat absorption.

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