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question_answer1) Calculate the number of moles of gas present in the container of volume 10 lit at 300 K. If the manometer containing glycerin shows 5m difference in level as shown in diagram. Given: \[{{d}_{glycerin}}\,\,=\,\,2.72\,\,gm\,/\,ml,\]\[{{d}_{mercury}}\,\,=\,\,13.6\,\,gm\,/\,ml.\]
question_answer2) A manometer attached to a flask contains \[N{{H}_{3}}\] gas have no difference in mercury level initially as shown in diagram. After the sparking into the flask, it have difference of 19 cm in mercury level in two columns. Calculate % dissociation of ammonia.
question_answer3) Into a gas bulb of 2.83 litres, are introduced 0.174 g of \[{{H}_{2}}\] and 1.365 g of \[{{N}_{2}}\]which can be assumed to behave ideally. The temperature is\[0{}^\circ C\]? What is the total gas pressure?
question_answer4) Two gases A and B having molecular weights 60 and 45 respectively are enclosed in a vessel. The wt. of A is 20 g and that of B is 18 g. The total pressure of the mixture is 750 mm. Calculate partial pressure of the B.
question_answer5) A gaseous mixture of He and \[{{O}_{2}}\] is found to have a density of \[0.518\,\,g{{L}^{-1}}\] at \[25{}^\circ C\] and 720 torr. What is the percent by mass of helium in this mixture?
question_answer6) \[20\,\,d{{m}^{3}}\] of \[S{{O}_{2}}\] diffuse through a porous partition in 60 S, what volume of \[{{O}_{2}}\] will diffuse under similar conditions in 30 S.
question_answer7) The density of an ideal gas A is 1.43 gm/lit at STP. Determine the density of A at \[17{}^\circ C\] and 700 torr (mm)
question_answer8) A cylinder containing 5.0 litre \[{{O}_{2}}\] at \[25{}^\circ C\] was leaking. When the leakage was detected and stopped there was a change in the pressure of the gas from 3.0 aim to 2.240 aim. How much oxygen in g has
question_answer9) A straight glass tube has two inlets X and Y at the two ends. The length of the tube is 200 cm. \[HCl\]gas at 1.2 atm is sent through inlet X and \[N{{H}_{3}}\] gas at 1 aim through intel y is allowed to enter the tube at the same time. White fames first appears at point L inside the tube. Find the distance L from X.
question_answer10) At \[627{}^\circ C\] and 1 atm pressure, \[S{{O}_{3}}\] undergoes partial dissociation into \[S{{O}_{2}}\,\,and\text{ }{{O}_{2}}\] \[S{{O}_{3}}\rightleftharpoons {{O}_{2}}+1/2{{O}_{2}}\] If the observed density of the equilibrium mixture is \[0.925\,g/l\], calculate degree of dissociation of \[S{{O}_{3}}.\]
question_answer11) At 400 K, the root mean square (rms) speed of a gas X (molecular weight = 40) is equal to the most probable speed of gas Y at 60 K. The molecular weight of the gas Y is-
question_answer12) The diffusion coefficient of an ideal gas is proportional to its mean free path and mean speed. The absolute temperature of an ideal gas is increased 4 times and its pressure is increased 2 times. As a result, the diffusion coefficient of this gas increases x times. The value of x is.
question_answer13) The degree of dissociation of \[{{N}_{2}}{{O}_{4}}\] according to the equation \[{{N}_{2}}{{O}_{4}}\rightleftharpoons 2N{{O}_{2}}\] at \[70{}^\circ C\] and atmospheric pressure is 65.6%. Calculate the apparent molecular weight of \[{{N}_{2}}{{O}_{4}}\] under the above conditions.
question_answer14) Carbon monoxide gas is purchased in a 425 mL bottle at a pressure of 5 atm. and \[23{}^\circ C\]. Find the density of gas in the bottle.
question_answer15) Given reaction \[C\left( S \right)\,\,+\,\,{{H}_{2}}O\left( g \right)\,\,\xrightarrow{{}}\,\,CO\left( g \right)\,\,+\,\,{{H}_{2}}\left( g \right)\] Calculate the volume of gaseous mixture obtained at STP from 48 gm. of carbon and excess \[{{H}_{2}}O\]-
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