Unit D final review

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

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

• c

• Q

• m

• t

A 100 g sample of water is heated from 20°C to 80°C. How much heat energy is absorbed by the water if its specific heat capacity is 4.18 J/g°C?

• 25080 J

• 4180 J

• 418 J

• 104.2 J

What does the specific heat capacity of a substance indicate?

• The amount of heat required to change its state

• The amount of heat required to raise its temperature by 1 degree Celsius

• The amount of heat it can absorb before melting

• The amount of heat it can release when cooled

What is the formula for calculating heat capacity?

• Q = mcΔT

• Q = mc

• Q = mc^2

• Q = mΔT

If a substance has a high specific heat capacity, does it require more or less heat to raise its temperature?

• more

• no heat is required

• the same amount

• less

The temperature of a substance increases as___.

• the substance expands
• the average kinetic energy of its particles increases
• the substance's volume increases
• the substance's mass increases

A measure of the average kinetic energy of the individual particles in an object is called:

• thermal energy

• conduction

• convection

• temperature

What is the total energy of all of the particles in an object?

• Thermal Energy

• Heat

• Temperature

The movement of thermal energy from a warmer object to a cooler object is called:

• heat

• temperature

• motion

• momentum