Unit 10 review

What is the amount of energy needed to 1 g of a substance by 1 degree Celsius?

• Specific Heat

• Delta T

• Heat of Vaporization

• Heat of Fusion

The _______ phase has the lowest kinetic energy of all the phases and has a definite shape and volume

The ______ phase is the most energetic phase of them all. This phase makes up most of the matter in the universe.

The _______ phase has definite volume but an indefinite shape.

The _______ phase has no definite shape or volume and is directly affected by temperature and Pressure.

As wood burns, it releases heat into the surroundings. this is an example of a ________ reaction

• exothermic

• endothermic

• polythermic

• mesothermic

The amount of energy needed to melt a gram of a substance is...

• Heat of Vaporization

• Heat of Fusion

• Specific heat

The units for Heat of Fusion (H_f) and Heat of Vaporization (H_v) are:

• J/g

• J/gC

• Jg

• J/C

Sublimation is the phase change from ______ to ______.

• solid-->plasma

• gas-->solid

• solid-->gas

• liquid-->plasma

1 cal = 4.18 J. How many joules are in 500 cal?

• 2090

• 119.62

• 0.008