Liquid freezes because it
i) ……….heat and an gas condenses because it ii)……..heat
a) i) absorbs ii) releases
b) i) releases ii) absorbs
c) i) absorbs ii) also absorbs
d) i) releases ii) also releases
Which of the following change/s is/are reversible?
a) melting
b) evaporation
c) condensation
d) all of these
Which of the following change/s is/are reversible?
a) freezing
b) sublimation
c) boiling
d) all of these
Which of the following substance/s sublime/s?
a) phenolphthalein
b) iodine
c) ammonium chloride
d) all of these
How is the temperature of environment as compare to freezer?
a) warmer
b) hotter
c) colder
d) none
What happens to water when it is placed in freezer?
a) water loss heat
b) water gain heat
c) water boils
d) all of these
