Heat capacity

How much energy is needed to raise the temperature of 5.0 grams of lead from 25°C to 35°C? [specific heat (c) = 0.129 J/(g•°C)]

• 6.45 J/(g•°C)

• 6.45 J

• 16.1 J/(g•°C)

• d.16.1 J

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The temperature of a 6.0 g sample of glass changed from 20.0°C to 45.0°C when it absorbed 550 J of heat. What is the specific heat of this glass?

• 0.27 J/g °C

• 3.7 J/g °C

• 130 J/g °C

• 12 J/g °C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When a  piece of aluminum foil is taken out of the oven and cools from 100° to 50°, What is the change in temperature?

• 50°
• 0°
• 100°
• 150°

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How does heat flow?

• Always from cold to warm
• Always from warm to cold
• Both warm to cold & cold to warm
• It depends on the temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?

• Copper
• Carbon Steel
• Zinc
• Stainless Steel

Tags

NGSS.MS-PS1-4

What does "ΔT" stand for?  

• A change in time
• A change in temperature in degrees C
• A change in mass
• A change in temperature in degrees F

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What does "ΔH" stand for? 

• A change in heat 
• A change in hydrogen
• A change in how much Helium the Sun releases
• A change in heat during an endothermic reaction

The SI units J/g°C measures

• Specific heat

• mass

• temperature

• heat energy

Tags

NGSS.MS-PS3-4