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CLASS - 10, , SONU CLASSES, 46, BHAIRAB DUTTA LANE NANDI BAGAN SALKIA, HOWRAH – 6, M. – 8961678250, 7003499494, CLASS – X, SUBJECT – PHYSICAL SCIENCE, BEHAVIOUR OF GASES, 1.If the vapour density of a carbon containing gaseous substances is 13, which of the, following’ can be its molecular formula?, Ans- C2H2, 2.How many molecules of CO2 will be produced when 1 mole C reacts completely with 1 mole, O2?, Ans- 6.022 X 1023, 3.Pressure of a gas in a vessel can be measured by?, Ans- Manometer, 4.The kinetic energy of a ideal gas depends only on?, Ans- Temperature, 5.For n mole of ideals gas, how can we write the equation of state?, 𝑷 𝑛𝑅, Ans- 𝑻 = 𝑉, 6.Which of the following graphs will be a straight line at constant pressure?, Ans- Volume of temperature, 7.What is the unit of gas constant?, Ans- JK-1mol-1, 8.Value of which physical quantity will be zero for ideal gas. At OK temperature?, Ans- Kinetic energy, 9.What is the name of the curve obtained when a graph is down between pressure and, volume at constant temperature?, Ans- isotherm, 10.What is the name of the line obtained by drawing graph between volume and temp. at, constant pressure?, Ans- Isobar, 11.What is the approximate value of ‘R’ in the equation PV = RT for one g molecule of a gas?, Ans- 2 cal/K, 12.According to charle’s law, at which temperature the volume of a gas becomes zero?, Ans- OoA, 13.What will be the value of gas constant (R) in JK -1mol-1?, Ans- 8.31, 14.What is the volume of one gm molecule of any gas at GTP?, , SONU CLASSES

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CLASS - 10, Ans- 22.4 lt, 15.Boiling point of pure water in absolute of scale is?, Ans- 373oA, 16.Which temperature is represented by NTP?, Ans- 273K, 17.At which temperature molecular motion cases?, Ans- -273oC, 𝑷𝑽, 18.What is the value of 𝑻 for one mole of ideals gas?, Ans- 1.987 cal k-1mol-1, 19.No. of electrons present in 1 mole electron is?, Ans- 6.022X1023, 20.At STP, what is the volume of 32g oxygen?, Ans- 22.4L, 21.what is the mass of one mole water?, Ans- 18g, 22.What is the ratio of the volumes of 32g O2 and 36g H2O at NTP?, Ans- 1 : 2, 23.What is the ratio of number of molecules present in 17gm NH 3 and 36.5gm HC/ at NTP?, Ans- 1 : 1, 24.Weight of one litre of a gas at NTP is x gm. Find out its molecule weight?, Ans- 22.4 x X, 25.The vapour density of oxygen is 16. What is its molecular weight?, Ans- 32, 26.Ratio between the vapour density and the molecular weight of gas is?, Ans- 1 : 2, 27.Which is the following is equal to 290K?, Ans- 17oC, 28.No. of mole in 44.8 litre of oxygen at S.T.P is?, Ans- 2, 29.What is the volume of 8g SO 2 at S.T.P?, Ans- 2.8L, 30.At which temperature the volume of any ideal gas becomes zero?, Ans- -273oC, 31.The weight of 22.4 litre of hydrogen gas at STP is?, Ans- 2 g, 32.Which of the following is the S.I. unit of pressure?, Ans- Nm-2, , SONU CLASSES