Specific Heat Problems

If the specific heat of water is 4.18 J/g∙°C, how much heat is required to increase the temperature of 1,200 g of water from 23 °C to 39 °C?

• -80,256 J

• 80.256 J

• 80,256 J

• -80.256 J

Tags

NGSS.MS-PS3-4

A sample of iron receives 50.J of heat energy that raises the temperature of the iron by 25.0°C. If iron has a specific heat of 0.10 J/g°C, what is the mass of the iron sample?

• 25g

• 30g

• 20g

• 50g

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The specific heat of water is 4.18 J/g°C. If 980. J of energy is added to 6.20 g of water at 18.0 °C, what is the final temperature of the water?

• 37.8 °C

• -19.8 °C

• 19.8 °C

• 55.8 °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The temperature of a 6.0 g sample of glass changed from 20.0°C to 45.0°C when it absorbed 550 J of heat. What is the specific heat of this glass?

• 0.27 J/g °C

• 3.7 J/g °C

• 130 J/g °C

• 12 J/g °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

How much heat is needed to change 12 grams of ice at 0 ºC to 12 grams of water at 0ºC?

• Q = 12 x 4.18 x 0

• Q = 12 x 334

• Q = 12000 x 334

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

• c

• Q

• m

• t

Tags

NGSS.MS-PS3-4

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 is Specific Heat?

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

• The amount of radiant energy required to increase the temperature of 1 g of a material by 1 degree Fahrenheit.

• The amount of energy required to increase the temperature of 1 kg of a material by 1 degree Kelvin.

• The amount of friction required to increase the temperature of 1 kg of a material by 1 degree.

Tags

NGSS.MS-PS3-4