Thermochemistry Review

• Endothermic

• Exothermic

• Cannot be determined

Tags

NGSS.HS-PS1-4

If the system releases 150J of heat, how much heat does the surrounding absorb?

• -100J

• -50J

• 150J

• 100J

Tags

NGSS.HS-PS3-4

If the reaction is endothermic, how does heat flow?

• System to surrounding

• Surrounding to system

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

• Object B: 100C

• Object C: 20C

• Object D: 75C

• Object E: 45C

Tags

NGSS.HS-PS3-4

What does it mean if an object has a low specific heat value?

• It heats up and cools down quickly

• It heats up and cools down slowly

Tags

NGSS.MS-PS3-4

Name a substance that has a HIGH specific heat value.

• Iron

• Copper

• Water

• Aluminum

How much heat is needed to increase the temperature of a 39 gram sample of lead from 38C to 52C? The specific heat of lead is 0.128 J/gC.

Tags

NGSS.HS-PS3-1

Calculate the specific heat of a piece of wood if 1500 grams of wood absorbs 6750 J of heat and its temperature changes from 32C to 57C. Take your answer to TWO decimal places

Tags

NGSS.HS-PS3-1

Heat will always flow from a ______ object to a ______ object.

• Cold to Warm

• Warm to Cold

• Cold to Cold

• Warm to Warm

Tags

NGSS.HS-PS3-4

Below are the specific heats of different substances. Determine which substance will take the LONGEST to heat up.

• Silver: 0.22 J/gC

• Methanol: 2.14 J/gC

• Gold: 0.129 J/gC

• Milk: 3.89 J/gC

Tags

NGSS.HS-PS3-4