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WorksheetsStates Of Matter
Total questions: 10
Worksheet time: 10mins
A person living in Shimla observed that cooking food without using pressure cooker takes more time. The reason for this observation is that at high altitude:
Pressure increases
Temperature decreases
Pressure decreases
Temperature increases
Which of the following property of water can be used to explain the spherical shape of rain droplets?
Viscosity
Surface tension
Critical phenomenon
Pressure
The interaction energy of London force is inversely proportional to sixth powerof the distance between two interacting particles but their magnitude dependsupon
Charge of interacting particles
Mass of interacting particles
Polarisibility of interacting particles
Strength of permanent dipoles in the particles
As the temperature increases, average kinetic energy of molecules increases.What would be the effect of increase of temperature on pressure provided thevolume is constant?
Increases
Decreases
Remains the same
Becomes half
What is SI unit of viscosity coefficient (η)?
Pascal
Nsm–²
km–²s
N m–²
How does the surface tension of a liquid vary with increase in temperature?
Remains same
Decreases
Increases
No regular pattern is followed
Increase in kinetic energy can overcome intermolecular forces of attraction. How will the viscosity of liquid be affected by the increase in temperature?
Increase
No effect
Decrease
No regular pattern will be followed
The pressure of a 1:4 mixture of dihydrogen and dioxygen enclosed in a vessel is one atmosphere. What would be the partial pressure of dioxygen?
0.8×105 atm
0.008 Nm–2
8×104 Nm–2
0.25 atm
Gases possess characteristic critical temperature which depends upon the
magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.
Gases _ _ _ _ _ _ _ _ _ H2_ _ _ _ _ _ He _ _ _ _ _ _O2 _ _ _ _ _ _N2
Critical temperature
(in Kelvin) _ _ _ _ _ _ 33.2 _ _ _ _ 5.3 _ _ _ _ _ _154.3 _ _ _ _126
From the above data what would be the order of liquefaction of these gases?
Start writing the order from the gas liquefying first
H2, He, O2, N2
He, O2, H2, N2
N2, O2, He, H2
O2, N2, H2, He
Boyles law says
P ∝ V at constant Temperature
P ∝ T at constant Volume
P ∝V1 at constant Temperature
P ∝ n at constant Temperature & Volume
