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Chemistry

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Juana Sporer

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โˆ™ 2021-09-30 20:41:39
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Cards in this guide (20)
What is thermal energy

The total kinetic energy of the particles in a system

Why do people inhale

Air: oxygen and carbon dioxide They exhale carbon dioxide.

12 l of ammonia were produced by the haber process how many liters of hydrogen were used during the reaction the reaction took place at stp 0c and 1.0 ATM n2g plus 3h2g 2nh3g

18

What property of ocean water affects climate the most

Its heat capacity

What would cause entropy to increase in a reaction

The products becoming more spread out.

How much energy is required to vaporize 1.5 kg of aluminum

1650kj

What does a negative H tell about a reaction

The reaction is exothermic.

Why does the handle of a metal spoon get hotter than a wooden spoon would

The metal spoon is a better thermal conductor.

What information does the latent heat of vaporization give

The energy needed to completely vaporize a mole of a liquid

What does a high specific heat tell about a substance

A high specific heat tells you that it is hard to change the temperature of a substance.

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

Grams liquid × mol/g × Hfusion

What does a negative Hf for a molecule mean

Energy was released when the molecule was formed from its elements

How is enthalpy related to the spontaneity of a reaction

H < 0 contributes to spontaneity.

What reactions would have a decrease in entropy

anabolic reaction

How much energy is required to raise the temperature of 2 kg of iron from 20C to 23C

2700J

If 213 J raises a sample of water 8.2 C what is the mass of the water

6.2 g

Two kittens are sleeping by a furnace vent they are relying mainly on what kind of heat transfer

convection heating APEX

What statement describes a reaction at 298 K if H 31 kJmol S 0.093 kJ(molK)

It is not spontaneous.

What statement best describes the second law of thermodynamics

How energy changes or moves

What does Hesss law say about the enthalpy of a reaction

The enthalpy of a reaction does not depend on the reactant path taken.

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