Heat Calculations

___________ is measured by the unit Joules.

• Heat energy
• Temperature
• Specific heat

Tags

NGSS.HS-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

Tags

NGSS.HS-PS3-1

Heat energy moves from __________ things to _________ things.

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

Tags

NGSS.HS-PS3-4

All changes in the state of matter of a substance requires

• vibration
• water
• permission
• energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Calculate the amount of energy required to melt 35.0 grams of ice.
(not in sig figs)  H_f = 334.0 J/g,  H_v = 2260J /g.

• 79100J
• 146.3J
• 11690J
• 39939.9J

Tags

NGSS.HS-PS3-1

How many Joules of energy are required to make 100 grams of ice at 0 ^οC completely melt? The heat of fusion of ice is 334 J/g

• 200 J
• 400 J
• 33,400 J
• 2,000,000 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How many joules are required to boil 75 grams of water?

• 25050J
• 169500J
• 31350J
• 10000J

Tags

NGSS.HS-PS3-1

How much energy is required to completely boil away 150g of water? Use C = 4.184 J/g^oC for water, and H_v = 2260 J/g.

• 40080J
• 1417020J
• 339000J
• 439000J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

NGSS.HS-PS3-4

What type of process is happening as one moves along line segment B toward the right?

• An endothermic Process
• An exothermic Process
• The calorimetry process
• Nuclear fusion

Tags

NGSS.HS-PS1-4

Between which points is the temperature of the substance remaining constant?

• A-B only. 
• A-B, C-D, E-F
• B-C only. 
• B-C, D-E

Tags

NGSS.MS-PS1-4