Unit 9 Test Review - Thermochemistry

What type of reaction is shown in the reaction pathway?

• endothermic reaction
• exothermic reaction

Tags

NGSS.HS-PS1-4

What does all our work, provides all our heat, can be stored to use later, and never, ever goes away?

• enthalpy

• energy

• our best friend

• chemical bonds

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

What are the two ways that internal energy can be transferred?

• by pressure, or by volume change

• by conduction, or by convection

• by heat, or by work

• by radiation, or by absorption

Tags

NGSS.HS-PS3-4

Work is energy transferred to the motion of ___

• particles

• atoms and molecules

• objects

• humans

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

NGSS.HS-PS3-2

Heat is energy transferred to the motion of ___

• trebuchets

• atoms and molecules

• objects

• nuclear particles

Tags

NGSS.HS-PS3-4

NGSS.HS-PS3-2

What state function is based on the loss or gain of heat in a chemical reaction?

• energy

• enthalpy

• entropy

• volume

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

Which letter is used to represent enthalpy in an equation?

• capital Q

• lowercase t

• capital H

• lowercase e

Tags

NGSS.HS-PS3-1

Change in enthalpy is equal to ___

• pressure-volume work

• pressure on the Earth's surface

• the heat gained or lost by the system

• the internal energy of the system

Tags

NGSS.HS-PS1-4

When a reaction takes place and enthalpy changes, that heat is transferring into or out of ___

• chemical bonds

• the nuclei of atoms

• a hand warmer

• newly created particles

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

NGSS.HS-PS1-5

What type of chemical reaction releases energy through light or heat?

• an endothermic reaction

• an exothermic reaction

• an isothermic reaction

• an isobaric reaction

Tags

NGSS.HS-PS1-4