Define Osmotic pressure.

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Chandan Asked Aug 6, 2023

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A certain volume of nitrogen contains 3000 molecules at $30^{\circ} C$. How many molecules will it contain if it is heated to $100^{\circ} C$ and the pressure remains the same?

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Under similar condition of temperature and pressure equal __________ of all gases contains equal number of molecules.

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The weight of 350mL of a diatomic gas at 0°C and 2 atm pressure is 1.0 g. Calculate the weight of an atom in gram.

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Chandan Asked Sep 15, 2023

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Determine the number of moles of a real gas required to occupy 1.44 m3 volume at its Boyle's temperature and 0.1 atm pressure.

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CH3-CO-CH3 (g) $\rightleftharpoons$ CH3-CH3 (g)+ CO (g) Initial pressure of CH3COCH3 is 100 mm. When equilibrium is set up, mole fraction of CO (g) is 1 / 3. Hence value of K_p for given reaction is :

Chandan Asked Sep 11, 2023

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ALOK_RAJ Asked Aug 31, 2023

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Compressibility factor (Z) for N2 at $-23^{\circ} C$ and 25 atm pressure is 1.2. Calculate moles of N2 gas required to fill a gas cylinder of 7 liter capacity under the given conditions :

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Graham's Law: "Under similar conditions of pressure (partial pressure) the rate of diffusion of different gases is inversely proportional to square root of the density of different gases."

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ALOK_RAJ Asked Aug 26, 2023

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For the reaction $A(g)+B(g) \rightleftharpoons C(g)$ at equilibrium, the partial pressure of the species are $P_{A}=0.15$ atm, $P_{C}=P_{B}=0.30$ atm.

ALOK_RAJ Asked Aug 26, 2023

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Chandan Asked Aug 26, 2023

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The curve of pressure volume (PV) against pressure (P) of the gas at a particular temperature is as shown, according to the graph which of the following is incorrect (in the low pressure region):

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Infinite numbers of flasks are connected to one another as shown above. The volumes and pressures in each flask vary as shown. The stopcocks are initially closed. The common pressure, when all the stopcocks are opened, is

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ALOK_RAJ Asked Aug 18, 2023

193 views

Compressibility Factor : The ratio of the observed volume of a gas to the calculated volume under given conditions of temperature ano pressure is knwon as compressibilty Factor(Z) of the gas.

ALOK_RAJ Asked Aug 18, 2023

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ALOK_RAJ Asked Aug 18, 2023

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An ideal gas undergoes a process in which $T=T_{0}+a V^{3}$; where $T_{0}$ and 'a' are positive constants and V is molar volume. The molar volume for which pressure will be minimum is

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Let p and p _s the partial pressure or H2O (g) and vapour pressure of H2O (I) respectively. Then the % relative humidity is given by

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50g of H2 is placed in a vessel of constant volume and temperature. A hole is punctured in the vessel and left in vacuum. The pressure of H2 in the vessel will vary with time as

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A4: 1 molar ratio mixture of helium and methane is contained in a vessel at 10 bar pressure. Due to a hole in the vessel, the gas mixture leaks out. The molar ratio composition of the mixture effusing out initially is :

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The rate of effusion of helium gas at a pressure of 1000 torr is 10 torr $\min ^{-1}$. What will be the rate of effusion of hydrogen gas at a pressure of 2000 torr at the same temperature :

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Equal masses of sulphur dioxide and oxygen are mixed in an empty container at $25^{\circ} C$. The fraction of the total pressure exerted by sulphur dioxide is :

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For a real gas under low pressure conditions, which of the following graph is correct?

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At low pressure, if $R T=2 \sqrt{a \cdot P}$, then the volume occupied by a van der Waal's gas is :

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Define Osmotic pressure.

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