Instruction
Active
Identifying Direction of Heat Flow
Scenario
Object 1
Object 2
Indicate the direction of heat flow in each scenario.
Scenario A:
Lotion at
27°C
Skin at
37°C
Scenario B:
Lasagna at
170°C
Plate at
20°C
Scenario C
Scenario D:
Ocean water at
25°C
Lava at
950°C
Eggs at
2°C
Sidewalk at
80'C

A: object 1

B: object 2

C: object 1

D: object 1

Explanation:

hey there!

boiling point is the temperature at which the vapor pressure of the liquid equals atmospheric pressure. the vapor pressure of solvent molecules is decreased when a solute is added, so a higher temperature is required to increase the number of solvent molecules in the gas phase above the liquid.

at the freezing point, the vapor pressures of the solid and liquid are equal; a lower temperature is needed to reduce the number of solvent particles above the liquid.

hope this you

tobey