Thermochemistry Lesson 1

What is "q"?

• change in temperature
• heat
• specific heat capacity
• None of these

Tags

NGSS.HS-PS3-1

What are the units on "q"?

• Joules (J)
• grams (g)
• Kelvin (K)
• J/gK

Tags

NGSS.HS-PS3-4

What is "ΔT"?

• Final Temperature - Initial Temperature
• Initial Temperature - Final Temperature
• Final Temperature + Initial Temperature
• None of these

Tags

NGSS.HS-PS3-4

What are the units on "ΔT"?

• K or C is possible because the CHANGE in these temps are the same
• It will only be K
• g
• J/gK

What is "c"?

• Final Temperature - Initial Temperature
• heat
• specific heat capacity
• None of these

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4

What are the units on "c"?

• K 
• J
• g
• J/gK

Tags

NGSS.HS-PS3-4

Some problems won't give you mass directly, but they give you density and volume instead.  How can you use density and volume to find mass?

• Density x Volume
• Density / Volume
• Volume + Density 
• Volume / Density 

What law states that total heat lost by a system must be equal to the total heat gained by the surroundings?

• Law of Conservation of Mass
• Law of Conservation of Energy
• Third Law of Thermodynamics
• Law of Relative Proportions

Tags

NGSS.HS-PS3-4

What equation can we create from the Law of Conservation of Energy?

• heat gained = heat lost
• +q = -q
• mcΔT = -(mcΔT)
• All of these are correct

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

Hot iron is dropped into cool water.  Which substance represents the "-(mcΔT)" in the experiment?

• hot iron
• cool water
• the air and container
• everything in the Universe

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-4