Thermochemistry

An exothermic reaction

• absorbs heat

• releases heat

• produces sugar

• is really endothermic

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NGSS.HS-PS1-4

NGSS.HS-PS3-4

An endothermic reaction

• releases heat

• absorbs heat

• produces fuel

• produces oxygen

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NGSS.HS-PS1-4

Enthalpy is represented by:

• Q

• J

• Calories

• H

The system is represented by:

• the surroundings

• everything but the reaction

• the chemical reaction

• any element

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NGSS.MS-PS1-5

The surroundings are :

• the chemical reaction

• everything except the chemical reaction

• everything affected by the chemical reaction

• fuel

Tags

NGSS.HS-PS3-4

Thermochemistry is the study of:

• chemistry of metals

• chemistry of water

• heat flow in a chemical reaction

• energy

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

NGSS.HS-PS3-4

The formula for specific heat is:

• q=mc

• q=deltaTm

• q=mcdeltaT

• q=c

Combustion reaction has two reactants, they are:

• fuel and carbon dioxide

• carbon dioxide and oxygen

• fuel and oxygen

• water and fuel

The surroundings are :

• the chemical reaction

• everything except the chemical reaction

• everything affected by the chemical reaction

• fuel

Tags

NGSS.HS-PS3-4

The units of heat are:

• calories and Calories

• Joules and calories

• Calories and Enthalpy

• Enthalpy and Exothermic