Latent and sensible heat

Which part of the graph represents the point where water evaporates?

• Q to R

• R to S

• S to T

• T to U

Which part of the graph represents the point where ice melts?

• P to Q

• Q to R

• R to S

• S to T

Which part of the graph represents the point where gas gets hotter?

• Q to R

• R to S

• S to T

• T to U

Which part of the graph represents the point where water gets hotter?

• P to Q

• Q to R

• R to S

• S to T

The part of the graph between points C and D represents:

• Latent heat

• Sensible heat

The part of the graph between points D and E represents:

• Latent heat

• Sensible heat

The part of the graph between points E and F represents:

• Latent heat

• Sensible heat

What is the definition of specific heat?

• the particular temperature of a specific substance

• the heat required to change the temperature of a substance by one degree per kilogram

• the difference between the temperature of a substance in two different states

• the amount of heat that you need to change a substance from one state to another

Which of the following is true of specific heat?

• the specific heat of a substance is always fixed no matter what state it is in

• the specific heat is always the same as the latent heat of fusion

• the specific heat is always greater than the latent heat of vaporisation

• specific heat is normally measured in kilojoules per kilogram

What is the formula for sensible heat?

• mass times temperature times specific heat

• mass times temperature difference times sensible heat

• specific heat times temperature difference times mass

• sensible heat times temperature difference times mass