Specific Heat Capacity

The symbol for specific heat is .......

• c
• Q
• m
• t

What  is the formula to calculate heat energy required to raise the temperature of any substance?

• Q=mc∆t
• Q=mc
• Q= ½mv
• m=QC

What unit do you use to measure Thermal Energy?

• J/Kg ºC
• Kg
• ºC
• J

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°?

• 105 cal

• 10.5 cal

• 1.05 cal

• -105 cal

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

20 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?

• -418 J

• 209 J

• 83 J

• 4.18 J

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NGSS.HS-PS3-1

NGSS.HS-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.HS-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?

• 12.82 °C
• 24.12°C
• 351 °C

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NGSS.HS-PS3-1

NGSS.HS-PS3-4

What is Specific Heat?

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

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

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

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

Tags

NGSS.HS-PS3-4

A sample of iron receives 50J of heat energy that raises the temperature of the iron 25.0°C. If iron has a specific heat of .10 J/g°C, what is the mass of the iron sample?

• 25g

• 30g

• 20g

• 50g

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NGSS.HS-PS3-1

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

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NGSS.HS-PS1-5

NGSS.HS-PS3-4