Calculating Heat Transfer (change temp only)

A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.

• 0.46 J/g ^oC

• 1.7 J/g ^oC

• 2,600 J/g ^oC

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NGSS.HS-PS3-4

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to 55°C, if the specific heat of aluminum is 0.90 J/g °C?

• 297 Joules

• 0.003 Joules

• 297 J/gx°C

• 0.003 J/gx°C

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NGSS.HS-PS3-1

NGSS.HS-PS3-4

A 300.00 g piece of copper is heated and fashioned into a bracelet. The amount of energy transferred by heat to the copper is 66,300. J. If the specific heat of copper is .3900 J/g ⁰C, what Is the change of the copper's temperature?

• 566.7 °C

• 86.19 °C

• 110.5 °C

• 8.619 °C

Tags

NGSS.HS-PS3-4

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

• c
• Q
• m
• t

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

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NGSS.MS-PS1-4

How many Joules of energy are required to change 10.0 gram of liquid water from 20. C to 90. C?

• 1400 J

• 2800 J

• 210,000 J

• 1,400,000 J

Tags

NGSS.HS-PS3-4

The specific heat of aluminum is 0.210 J/g°C. How much heat(Q) is released when a 10.0 g piece of aluminum foil is taken out of the oven and cools from 100.° to 50.0°?

• -105 J

• -10.5 J

• -1.05 J

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NGSS.HS-PS3-1

NGSS.HS-PS3-4

For a skillet, used for cooking, do you want a high or low specific heat

• High, so that it will need more energy to heat up
• Low, so that it will change temperature quickly

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NGSS.MS-PS3-3

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If 200 grams of water is to be heated from 24.0° C to  100.0° C to make a cup of tea, what is the mass and what is the change in temperature?

• m=200g
  ∆t= 66
• m=200g
  ∆t=124
• m=200
  ∆t=100
• m=200g
  ∆t=76

Tags

NGSS.HS-PS3-4

The specific heat(c) of copper is 0.390 J/g °C. What is the final temperature when 100. Joules of heat(Q) is added to 20 grams of copper at room temp 22.0 ^oC?

• 12.82 °C

• 24.12 °C

• 34.8 °C

• 122 °C

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NGSS.HS-PS3-1

NGSS.HS-PS3-4