KMT Phase Diagrams

The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is absorbed when a 10 g piece of platinum warms from 100°C to 150°C?

• 66.5 J

• 665 J

• 0.0266 J

• 0.665 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

What is the temperature change(∆t) when 100 Joules of heat(Q) is added to 20 grams of copper?

• 12.82 °C

• 24.12°C

• 1.95 °C

• 5128 °C

Tags

NGSS.HS-PS3-1

How much heat(Q) is released when a 10 g piece of lead cools from 100°C to 35°C?

• 66.5 J

• 665 J

• -83.85 J

• 0.665 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

___________ is measured by the unit Joules.

• Heat energy
• Temperature
• Specific heat

Tags

NGSS.HS-PS3-1

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

Calculate the energy transferred when raising the temperature of 16000g of water by 3˚C

• 785 J

• 126000J

• 22000J

• 200640 J

Tags

NGSS.HS-PS3-4

How many Joules of energy are required to change 10 gram of water from 20 C to 90 C?

• 1476 J
• 2926 J
• 210,050 J
• 1,404,500 J

Tags

NGSS.HS-PS3-1

Which line segment demonstrates vaporization occurring?

• B-C
• C-D
• D-E
• E-F

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Where on the graph are phase changes taking place?

• 1

• 2

• 3

• 4

• 5

What is happening to the particles in the substance between points D and E?

• Melting

• Freezing

• Vaporizing

• Sublimating

Tags

NGSS.MS-PS1-4