States of Matter
Calculate the root mean square velocity of ozone kept in a closed vessel at 20∘C and 82cmHg pressure.
A bubble of gas released at the bottom of a lake increases to four times its original volume when it reaches the surface. Assuming that atmospheric pressure is equivalent to the pressure exerted by a column of water 10 m high, what is the depth of the lake?
A certain hydrate has the formula MgSO4.xH2O. A quantity of 54.2 g of the compound is heated in an oven to drive off the water. If the steam generated exerts a pressure of 24.8 atm in a 2.0 L container at 120∘C, calculate x.
Which of the following can be must readily liquefied? The given value of a for NH3 is 4.17, CO2 is 3.59, SO2 is 6.71, and Cl2 is 6.49.
A He atom at 300 K is released from the surface of the earth to travel upwards. Assuming that it undergoes no collision with other molecules, how high will it be before coming to the rest?
Assertion :A large force is required to draw apart normally two glass plates enclosing a thin water film.
Reason :Water works as glue and sticks two glass plates.
A balloon containing 1 mole air at 1 atm initially is filled further with air till pressure increases to 4 atm. The intial diameter of the ballon is 1 m and the pressure at each stage is proportional to diameter of the balloon. How many moles of air added to change the pressure from 1 atm to 4 atm.