Correct the following statement.
A Water boils at 100 C under 2 atmosphere pressure.
B. At high altitude water boils at above 100 C
C. A liquid evaporates above its boiling point.
D. When a substance is heated the kinetic energy of the particle decreases
E. Solid have the largest inter-particle space
F. Gases have the strongest inter particle forces
Answers
Answer:
(a) Water boils at 100°C when pressure around the water is atmospheric pressure, that is 1atm = 1.01
105 Pa.
(b) a liquid evaporates below its boiling point. In this process Liquid Molecule collide each other and transfer energy to each other, so that molecule at surface absorbs enough energy to overcome the vapor pressure.
(c) Solids have Lowest inter particle space. That’s why Solids have fixed shape and size.
(d) Gases have the weakest inter particle Forces. That’s why gases do not have fixed size and shape.
Explanation:
A. Water boils at 100°C under 1 atmosphere pressure.
B. At high altitude water boils at above 90°C.
C. A liquid evaporates below its boiling point.
D. When a substance is heated the kinetic energy of the particle increases.
E. Solid have the smallest inter-particle space.
F. Gases have the weakest inter particle forces.