Heat Equations

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.HS-PS1-5

NGSS.HS-PS3-2

How much heat is needed to change 12 grams of ice at 0 ºC to 12 grams of water at 0ºC? Heat of fusion = 334 kJ/kg; Specific heat of water = 4186 J/kg

• Q = 12 x 4186 x 0

• Q = 12 x 334

• Q = 12000 x 334

• Q = 0.012 x 334

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

How much heat must be lost to change of 110 grams of water at 0 ºC to 110 grams of ice at 0ºC? Heat of fusion = 334 kJ/kg; Specific heat of water = 4186 J/kg

• Q = 110 x 4186

• Q = 110000 x 4186

• Q = 0.110 x 334

• Q = 110 x 334

Tags

NGSS.MS-PS1-4

how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C?

• Q = 1.2 x 4186

• Q = 1.2 x 4186 x 7

• Q = 1.2 x 4186 x 17

• Q = 0.0012 x 4186 x 17

Tags

NGSS.HS-PS3-1

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

Using the heat equation, what would the formula look like if we were solving for change in temperature?

• Q m=∆T c

• Q/mc= ∆T

• Qm/c=∆T

• mcQ=∆T

Using the heat equation, what would the formula look like if we were solving for specific heat?

• q=mcΔT

• q=c/mΔT

• c=qmΔT

• c=q/mΔT

Tags

NGSS.HS-PS3-4

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

• c

• Q

• m

• t

Tags

NGSS.HS-PS3-4

The unit(s) for specific heat is/are

• J

• g

• ℃

• J/g℃

What is the heat equation used to calculate the amount of heat required to change the temperature of a substance?

Tags

NGSS.HS-PS3-4