Calorimetry and Specific Heat

The specific heat of aluminum is 0.21 cal/g°C.  How much heat(Q) is released when a 10 g piece of aluminum foil is taken out of the oven and cools from 100° to 50°? (a)  

• 105 J

• 10.5 J

• 1.05 J

• 50 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The specific heat(c) of copper is 0.39 J/g °C. What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams of copper?

• 12.82 °C

• 24.12°C

• 351 °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The amount of energy required to raise the temperature 1ºC for every kilogram is called____?

• Thermal Energy

• Specific Heat

• Temperature

• Kinetic Energy

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 (a)  

• Wood

• Water

• Both are the same

Object A has a specific heat of 4.45 J/g⁰C and object B has a specific heat of 1.82 J/g⁰C. Which object will heat up faster?

• Object A, it has a lower specific heat

• Object B, it has a lower specific heat

• Object A, it has a higher specific heat

• Object B, it has a higher specific heat

Tags

NGSS.MS-PS3-4

The unit for specific heat is

• J

• J/gC

• g

Tags

NGSS.MS-PS3-4

A high specific heat means...

• It requires less energy to change temperature

• It requires more energy to change temperature

• It heats up very quickly

Tags

NGSS.MS-PS3-4

What is the specific heat of an unknown substance if 100.0 g of it at 200.0 °C reaches an equilibrium temperature of 27.1 °C when it comes in contact with a calorimeter of water.  The water weighs 75. g and had an initial temperature of 20.00 °C?  (Specific heat of water is 4.18 J/g°C) (show your work) (a)  

• 0.111 J/g°C

• 1.29 J/g°C

• 0.129 J/g°C

• 22225.85 J

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the equation to measure change in Thermal Energy? (a)  

• Q=mc∆t

• Q=mc

• Q= ∆mct

• m=QC

Tags

NGSS.MS-PS3-4

What is the symbol for Specific Heat (a)  

• Q

• t

• m

• C

Tags

NGSS.MS-PS3-4