Heat Capacity

The temperature of an unknown piece of metal with a mass of 30.00 g changes from 25.0 °C to 35.0 °C when the metal absorbs 350.0 J of energy. What is the specific heat of the metal?

• 1.17 J/g°C

• -1.17 J/g°C

• 0.857 J/g°C

• -0.857 J/g°C

Tags

NGSS.MS-PS3-4

What is Specific Heat?

• The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
  

• The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C

• The  amount of energy required to increase the temperature of 1kgof a material by 1°C.

• The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.

Tags

NGSS.MS-PS3-4

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

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

• Thermal Energy

• Specific Heat

• Temperature

• Kinetic Energy

What is the equation to measure change in Thermal Energy?

• Q=mc∆t

• Q=mc

• Q= ∆mct

• m=QC

Tags

NGSS.MS-PS3-4

If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?

• 100 mL

• 1000 mL

• They both heat up at the same speed

• They cool down.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

How much energy is needed to raise the temperature of 5.0 grams of lead from 25°C to 35°C? [specific heat (c) = 0.129 J/(g•°C)]

• 6.45 J/(g•°C)

• 6.45 J

• 16.1 J/(g•°C)

• d.16.1 J

Tags

NGSS.HS-PS3-4

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down

• They would stop moving

• They would speed up

• There would be no effect

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

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?

• 12.82 °C

• 24.12°C

• 351 °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

There are four cups of hot cocoa. The cup sizes are shown. The temperature of the cocoa in each cup is 25 degrees celsius. Which cup has the MOST thermal energy?

• Large cup (Trenta)

• Small cup (Tall)

• Venti

• All three are the same temperature so they have same thermal energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4