The molecules of liquid which escape first have
A. highest kinetic energy
B. lowest kinetic energy
C. moderate kinetic energy
D. infinite kinetic energy
Related Questions on Chapter 5: Physical States of Matter Chemistry Mcqs for High School - Grade 9
A. condensation
B. evaporation
C. boiling
D. sublimation
Conversion of a liquid to a gas at all temperatures is called
A. sublimation
B. evaporation
C. condensation
D. boiling
The temperature at which the solid starts melting is called
A. boiling point
B. freezing point
C. melting point
D. sublimating point
At constant pressure the average kinetic energy of gas molecules increases 2 times if
A. temperature is increased by 2 times
B. temperature is halved
C. no change in temperature
D. temperature remains constant