Chemistry

Marques Fletcher

25 August, 00:16

An increase in the temperature of a contained liquid__

A) Has no effect on the kinetic energy of the liquid

B) Causes the vapor pressure above the liquid to decrease

C) Causes fewer particles to escape from the surface of the liquid

D) Causes the vapor pressure above the liquid to increase

Water could be made to boil at 105C° instead of 100C° by __

A) adding a lot of energy to the water

B) increasing the external pressure

C) decreasing the external pressure

D) taking the sample to a higher altitude

How do crystal systems differ?

A) in the angles between faces only

B) in the number of edges of equal length only

C) in the angles between bases in the number of edges of equal links

D) Crystal systems do not differ

Lesson 14 Unit Test Unit 1: Solids, liquids and gases