Specific Heat and Thermochemistry Test

In an exothermic process the surrounding looses heat. 

• True
• False

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-4

In an endothermic reaction the system is releasing energy.

• True
• False

Tags

NGSS.HS-PS1-4

Is the combustion of gasoline endothermic or exothermic?

• Endothermic
• Exothermic

Tags

NGSS.HS-PS1-4

Water has a specific heat of 4184 J/KgºC.  Wood has a specific heat of 1760 J/KgºC.  What material needs more energy to raise the temperature 1ºC

• Wood
• Water
• Both are the same

A material was cooled from 100ºC to 40ºC.  What is the temperature change?

• 60ºC
• 40ºC
• -60ºC
• -40ºC

Tags

NGSS.MS-PS3-4

What does temperature measure?

• Heat
• ºC
• Kinetic Energy
• Thermal Energy

What is the specific hear of an alloy if 4210 joules are required to raise the temperature of a 30 g sample by 180°C?

• 0.78 J/g°C

• 0.25 J/g°C

• 1.78 J/g°C

• 2.34 J/g°C

Tags

NGSS.HS-PS3-1

How much heat is needed to raise the temperature of 50 g of iron by 15°C? (specific heat of iron = 0.444 J/g°C)

• 333 J

• 33.3 J

• 33300 J

• 3330 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

An alloy has a specific heat of 1.25 cal/g°C and is at 25 °C. When it is dropped into warm water, the alloy absorbs 750 cal of heat. If the final temperature of the alloy is 75 °C, what is its mass?

• 12 g

• 2.4 g

• 24 g

• 36 g

Tags

NGSS.HS-PS3-4

The specific heat of gold is 0.129 J/g°C. How many joules of energy are needed to warm 4.5 g of gold from 25.0°C to 100°C?

• 43.5 J

• 53.4 J

• 2.42 J

• 783 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4