Specific Heat Problems

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.HS-PS3-4

What unit do you use to measure Thermal Energy?

• J/Kg ºC
• Kg
• ºC
• J

Tags

NGSS.HS-PS3-4

How much heat(Q) is released when a 25.00g piece of aluminum foil is taken out of the oven and cools from 100.00° to 25.00°?

• 1682 J

• 394J

• 1259 J

• 985 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

A sample of iron receives 125J of heat energy that raises the temperature of the iron 32.0°C. What is the mass of the iron sample?

• 8.70g

• 14.4 g

• 20 g

• 50 g

Tags

NGSS.HS-PS3-1

A metal with a mass of 55.00 g changes is heated to 97.0°C and then placed in 65.00 mL of 29.0 °C water. The temperature of the water increases to 31.5 °C What is the specific heat of the metal?

• 0.20 J/g°C

• 0.18 J/g°C

• 0.19 J/g°C

• 0..17 J/g°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22.0°C to 55.0°C?

• 296 Joules

• 330 Joules

• 297 J/gx°C

• 550 J/gx°C

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Object A has a specific heat of 0.25 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

Object B has a specific heat of 0.45 J/g⁰C and object C has a specific heat of 0.82 J/g⁰C. Which object will heat up slower?

• Object C, it has a lower specific heat

• Object B, it has a lower specific heat

• Object B, it has a higher specific heat

• Object C it has a higher specific heat

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

Heat energy moves from __________ things to _________ things.

• warm / cold
• cold / warm
• liquid / solid

Tags

NGSS.HS-PS3-4