1 Which graph best shows the relationship between Kelvin temperature and average kinetic energy?

1         2         3         4        

2 At 1 atmosphere of pressure, water and ice can exist in equilibrium at a temperature of

(1) 212C       (3) 32C
(2) 100C       (4) 0C

1         2         3         4        

3 Which unit is used to express the energy absorbed or released during a chemical reaction?

(1) kelvin       (3) volt
(2) calorie      (4) torr

1         2         3         4        

4 When the vapor pressure of water is 149.4 torr, the temperature of the water is

(1) 20C       (3) 6 0 C
(2) 40C       (4) 80C

1         2         3         4        

5 Which substance will readily sublime at STP?

(1) Fe(s)            (3) NaCl(s)
(2) C6H12O6(s)       (4) CO2(s)

1         2         3         4