Gases & Solutions
States of Matter
A mixture of gases contains H2 and O2 gases in the ratio of 1:4(w/w). What is the molar ratio of the two gases in the mixture?
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Positive deviation from ideal behaviour takes place because of
Calculate the root mean square velocity of ozone kept in a closed vessel at 20∘C and 82cmHg pressure.
For gaseous state, if most probable speed is denoted by C∗ average speed by C and root square speed by C, then for a large number of molecules, the ratios of these speeds are
The compressibility factor for an ideal gas is
A bottle of dry ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends. The white ammonium chloride ring first formed will be
When 2g of a gas A is introduced into an evacuated flask kept at 25∘C, the pressure is found to be 1atm. If 3g of another gas B is then heated in the same flask, the total pressure becomes 1.5atm. Assuming ideal gas behaviour, calculate the ratio of the molecular weights MA and MB.
Calculate the total pressure in a mixture of 8 g of dioxygen and 4 g of dihydrogen confined in a vessel of 1 dm3 at 27 ∘C. (R = 0.083 bar dm3 K−1 mol−1)
Assertion :Smaller the droplets of water, spherical they are. Reason :Force of surface tension is equal, and opposite to force of gravity.