Chloroform has freezing point of ………..OC
a) -63.5
b) 80.2
c) 78.5
d) 100
The rate of diffusion increases as the temperature ………….
a) increases
b) decreases
c) has no effect
d) none of these
Explanation:As the temperature increases kinetic energy increases and collision increases to make homogeneous mixture so diffusion increases.
Ink dispersion in water is an example of ……
a) diffusion
b) effusion
c) evaporation
d) expansion
Mobility of the liquid molecules dependsupon
a) energy of molecules
b) temperature
c) a & b both
d) none of these
Greater the kinetic energy ………will be its mobility.
a) higher
b) lower
c) remains constant
d) has no effect
Mass per unit volume is called ………
a) pressure
b) density
c) mobility
d) stress
