In which state of matter the distance between molecules is larger as compared to the size of molecules.
a) solid
b) liquid
c) gas
d) plasma
Among all
states of matter which state is known as fluids?
a) solid
b) liquid
c) gas
d) both
b& c
Explanation: liquids and gases do not maintain a fixed shape, they both have the ability to flow that’s why they are also referred collectively as fluids.
Which of the following statement is true regarding gases?
a) gases are highly incompressible
b) gases exert equal pressure on each and every direction
c) its volume and shape is fixed
d) gases have the highest density among the 3 states of matter
Explanation: Gases are highly compressible, they occupy the shape and volume of the container as they have no fixed shape and volume and also that they have the least density among the three states of matter.
Which of the following element is not a gas?
a) nitrogen
b) oxygen
c) mercury
d) hydrogen
Explanation: Mercury is not a gas, it is a liquid in room temperature and it is a metal. There are 11 gases which are gases at room temperature they are hydrogen, Nitrogen, Oxygen, fluorine, chlorine, Helium, Neon, Argon, Krypton, Xenon, and Radon.
Gases have low density than that of solids and liquids because of………………
a) no thermal energy
b) higher intermolecular energy
c) both intermolecular energy and thermal energy are the same
d) higher thermal energy
Explanation: In gases, there is less amount of intermolecular energy and higher amount of thermal energy. As we know that thermal energy separates some molecules from one another so gases have low density than that of solids and liquids.
What can you say about particles motion in gases?
a) only vibratory
b) very slow
c) both vibratory and irregular
d) too Rapid and random
