Specific Heat

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.MS-PS1-4

If the specific heat of water is 4.18 J/g∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? (show your work)

• -80,256 J

• 80.256 J

• 80,256 J

• -80.256 J

The SI unit of heat and energy is the __________.

• calorie
• heat
• joule
• watt

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?  (show your work)

• 25g
• 30g
• 20g
• 50g

Tags

NGSS.MS-PS3-4

What does "q" mean?

• A change in health

• A change in heat

• A change in height

• A change in temperature

What does "ΔT" mean?

• A change in health

• A change in heat

• A change in height

• A change in temperature

What information does the specific heat capacity of water tell us?

• How much energy was released in the combustion of our food item

• The amount of energy to raise the temperature of 1 gram of water 1 Celsius degree

• The amount of energy in our water when we started the calorimetry lab

• It is just a constant to help us cancel units

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

Tags

NGSS.MS-PS3-4

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

• c
• Q
• m
• t

If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________

• one reaches a temperature of zero
• they both have an equal temperature
• one runs out of energy

Tags

NGSS.HS-PS3-4