4.2 Specific Heat Capacity

The specific heat of platinum is 0.133 J/g°C. How much heat(Q) is released when a 10 g piece of platinum cools from 100°C to 50°C?

• 66.5 J

• 665 J

• 0.0266 J

• 0.665 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

The SI units J/g°C measures

• Specific heat

• mass

• temperature

• heat energy

___________ is measured by the unit Joules.

• Heat energy
• Temperature
• Specific heat

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

20 g of water. specific heat of water is 4.18 J/g°C. temperature changes from 25° C to 20° C, how much heat energy (Q) moves from the water to the surroundings?

• 418 J

• 209 J

• 83 J

• 4.18 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?

• Water
• Wood
• Both are same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

Which will heat up slower?

• water

• lead

• granite

• iron

Tags

NGSS.MS-PS3-4

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

• 1400 J

• 2800 J

• 210,000 J

• 1,400,000 J

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

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

• c
• Q
• m
• t

What  is the formula to calculate heat energy required to raise the temperature of any substance?

• Q = m Cp ∆T
• Q = m Cp
• Q =  ½ m v
• m = Q Cp