Thermochemistry

The amount of energy that is absorbed or lost by a system as heat during a process at constant pressure

• a) enthalpy

• b) entropy

• c) specific heat

• d) energy

Water vaporizes

• a) increase (+)

• b) decrease (-)

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-1

A filled ice cube tray is placed in the freezer so that the water freezes

• a) increase (+)

• b) decrease (-)

Tags

NGSS.MS-PS1-4

Water vapor condenses on a car's windshield overnight

• a) increase (+)

• b) decrease (-)

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS3-4

Reactants have more energy than products

• a) EXO

• b) ENDO

Melting, boiling, evaporation, sublimation and cooking are:

• a) EXO

• b) ENDO

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Endothermic reactions feel

• warm
• cold

Tags

NGSS.HS-PS1-4

Exothermic reactions feel

• warm
• cold

Tags

NGSS.HS-PS1-4

energy in endothermic reactions are

• released
• ended
• absorbed

Tags

NGSS.HS-PS1-4

Heat flows from _______ to ______ objects

• cooler to warmer
• warmer to warmer
• warmer to cooler
• cooler to cooler

Tags

NGSS.HS-PS3-4