Physics question and answers for February 28, 2024
- Q AU 35 An ideal monoatomic gas undergoes a process in its internal energy U and density p vary as Up constant The ratio of change in internal energy 2 MCWon...
- Q Sound waves travel from a location A at absolute temperature T to location Bat absolute temperature T2 in a time t The air temperature increases linearly from T to T...
- Q An electron accelerated application magnitude E The magnitude of the rate of change of its de Broglie wavelength at time t is given by A B C D h eE...
- Q In the following figure A certain mass of gas traces three paths 1 2 and 3 from state A to state B If the work done by the gas along...
- Q A B 300K 400K Vapour pressure of liquid at 300 K is 20 mm of Hg and 400 K is 40 mm of Hg Very long time after opening the...
- Q Sri Chait 32 Sr IPLCO JEE ADV 2011 P1 RPTA 15 Q Paper Which of the following is true with regards to the below graph of the Maxwell speed distribution...
- Q N molecules is 14 times heavier than a H2 molecule At what temperature will the rms speed of H molecules be equal to that of N2 molecule at 27 C...
- Q edieval Two different ideal diatomic gases A and B are initially in the same state A and B are then expanded to same final volume through adiabatic and isothermal process...
- Q 2 1 5 R 3 2R 4 2 5 R Consider a thermodynamic system which ge from 1 to f through the process shown figure here Then work is done...
- Q 8 A certain ideal gas with adiabatic exponent y 1 5 is isothermally compressed to half its initial volume Find the further fractional change in pressure isochorically such that when...
- Q The molar heat capacity C of an ideal gas in a process is given by where a is constant y work done by one mole of gas during heating from...
- Q the mass of a suspended particle is 10 kg calculate Vrms Calculate the probability that the speed of an oxygen molecule will lie between 100 m s and 101 m...
- Q A vessel contains two non reactive gases monoatomic neon and diatomic oxygen The ratio of their partial pressure is 5 3 Estimate the ratio of number of moles of neon...
- Q aximum density at 4 C 5 Coefficient of volume expansion of ideal gases at constant pressure and at temperature TK is equal to 1 2 T 3 7 1 2...
- Q 0 A cylinder of capacity 44 8 litres contains helium gas at standard temperature and pressure What amount of heat is needed to raise the temperature of gas in cylinder...
- Q One litre of oxygen at a pressure of 1 atm and two litre of nitrogen at a pressure of 0 5 atm are introduced into a vessel of volume one...
- Q ALLEN Two spherical vessel of equal volume are 40 connected by a narrow tube The apparatus contains an Ideal gas at one atomosphere and 300 K Now if one vessel...
- Q ALLEN 17 mar Which of the following statements is true 1 Absolute zero temperature is not zero energy temperature 2 Two different gases at the same temperature pressure have equal...
- Q A gaseous mixture was prepared by taking equal moles of CO and N If the total pressure of the mixture was found 1 atmosphere the partial pressure of the nitrogen...
- Q The following condition is satisfied by two different gases A and B TAMB TBMA Where MA and MB represents molar mass of A and B respectively and MA MB TA...
- Q One mole of an ideal monoatomic gas degree of freedom 3 2 moles of an ideal diatomic gas degree of freedom 5 and 3 moles of an ideal triatomic gas...
- Q 5 R R Which one of the following methods will enable the volume of ideal gas to be increased four times 4 1 Double the temperature and reduce the pressure...
- Q D The mean free path of benzene molecule is 6 x 10 6 m and average speed of molecules is 1 2 x 10 m s The collision rate of...
- Q Q8 Oxygen and hydrogen gases are at temperature T Then K E of molecules of oxygen gas is equal to how many times of K E of molecules of hydrogen...
- Q et the r m s velocity of molecule of a given mass of gas be C at temperature 27 C When th emperature is increased to 327 C the r...
- Q For a gas molecule its degree of freedom for translation is 3 for rotation is 2 and for vibration is 2 If its rotational K E KER is related to...
- Q Figure shows three vessels A B and C of same volume connected by tubes of very small volume with two valves P P2 The pressure temperature and no of moles...
- Q Match List I with List II List I i A Isothermal B Isochoric ii Temperature constant C Adiabatic iii Volume constant D Isobaric iv Heat content is constant Choose the...
- Q temperature In Maxwell s speed distribution curve on increasing the number of gas molecules having most probable speed 1 Decreases TE 2 Increases 3 May increase or decrease 4 Remains...
- Q An ideal gas is compressed to half its initial volume by means of several processes Which of the process results in the maximum work done on the gas Re Test...
- Q The strength of magnetic field required to bend photoelectrons of maximum energy in a circle of radius 50 cm when light of wavelength 3300 is incident on a barium emitter...
- Q A container has an ideal gas at pressure P in thermal equilibrium Assuming the mass of a molecule is Im and all the molecules are moving with same speed v...
- Q 0 Two vessels having equal volumes contains molecular hydrogen at 1 atmospheric pressure and helium at 2 atmospheric pressure If both samples are at same temperature the r m s...
- Q A cylinder containing gas at 27 C is divided into two parts of equal volume each 100cc and at equal pressure by a piston of cross sectional area 10 85...
- Q A balloon contains 1500 m of helium at 300 K and 4 atmospheric pressure The volume of helium at 270 K and 2 atmospheric pressure will be Assuming no leakage...
- Q 1 mole of H gas is contained in a box of volume V 1 00 m a T 300K The gas is heated to a temperature of T 3000K an...
- Q molecule the rotational energy at a given temperature a obeys Maxwell s distribution b have the same value for all molecules c equals the translational kinetic energy for each molecule...
- Q 5 7 A vessel of volume V contains a mixture of 1 mole of Hydrogen and 1 mole of Oxygen both considered as ideal Let f v du denote the...
- Q B P F D H 13 9 C G ABCDEFGH is a hollow cube made of an insulator Fig 13 4 Face ABCD has positve charge on it Inside the...
- Q 1 a Two hydrogen ions of a water molecule form an angle of 104 5 with the oxygen ion Each O H bond length is 0 096 nm a Find...
- Q An ideal diatomic gas under goes a process in which internal energy changes with volume as given U CV5 Where C is constant Find the ratio of molar heat capacity...
- Q The van der Waal s equation of state for some gases can be expressed as P V b RT Where P is the pressure V the molar volume and T...
- Q Two identical heaters are coated with paint In 1st case e 1 0 and in 2nd case e2 0 5 Both are kept in identical chambers which are in similar...
- Q For the two adiabatics shown on a pressure volume P V diagram if process 1 is for oxygen gas then process 2 may be for Assume all gases are ideal...
- Q For an ideal gas if the ratio of Molar specific heats y 1 4 then the specific heat at constant pressure Cp specific heat at constant volume C and corresponding...
- Q An ideal gas has initial volume V and pressure P To triple its volume the minimum work done will be in NCERT Pg 312 1 Isothermal process 2 Adiabatic process...
- Q The cyclic process ABCDA has been performed on helium gas which behaves ideally Process AB is isothermal and CD is adiabatic The ratio of maximum to minimum temperature in complete...
- Q CH B 14 Two flasks A and B made of conducting materials are connected by a thin tube Two valves C and D are installed on the tube as shown...
- Q lasch Column 1 and Column 1 and che correct match frian the given choices Column 1 Column 11 A Root mean equame od of gue mol enles Per exerted by...
- Q Two vessels separately contain two ideal gases A and B at the same temperature The pressure of A is twice that of B Under such conditions the density of A...
- Q Container x has volume doubled that of container y are connected by thin tube Both contains same ideal gas The temperature of x is 200 K and that of y...
- Q 12 A cylindrical box is moving with a constant velocity along its axis in a chamber filled with an ideal gas Velocity of the cylinder is so small that it...
- Q SolveLancer Test In a cylindrical vessel with frictionless piston 5 moles of a diatomic gas expand adiabatically until its volume gets doubled The gas is initially at 106 N m...
- Q 2 8 In a cubical box of volume V there are N molecules of a gas moving randomly If m is mass of each molecule and is the mean square...
- Q One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure 1 2 P kPa Question Type Single...
- Q the r m velocity he r m s velocity of hydrogen molecules at temperature T is seven tim trogen molecules at 300 K This temperature T is Molecular weights of...
- Q 47 Pressure P volume V and temperature T for a AT BT2 certain gas are related by P V and B are constants The work done by the gas as...
- Q Two moles of an ideal monoatomic gas occupies a volume V at 27 C The gas expands adiabatically to a volume 2 V Calculate a the final temperature of the...
- Q Modern vacuum pumps can evacuate vessel down to a pressure 4 0 x 10 5 atm at room temperature 300 K Taking R 8 3 JK mole 1 atm 105...
- Q If a diatomic molecule is not a rigid rotator then the value of molar specific heat at constant volume Cv is R universal gas constant 1 1 22 3 3...
- Q 6 moles get dissociated supplied is 1 250R 3 750R 1000R A vessel contains diatomic gas If half of gas dissociated into individual atom then find new value of degree...
- Q 1 mole of a gas with 7 7 5 is mixed with 1 mole of a gas with 7 5 3 then the value of y for the resulting mixture...
- Q In an ideal gas at temperature T the average force that a molecule applies on the walls of a closed container depends on T as T9 A good estimate for...
- Q Two rigid boxes containing different ideal gases are placed on a table Box A contains one mole of nitrogen at temperature To while Box B contains one mole of helium...
- Q The work done by all the forces on the system equals to change in its OPTIONS CLEAR SELECTION MARK FOR REVIEW OA Mechanical energy OB Potential energy C Kinetic energy
- Q Two vessels having equal volumes contains molecular hydrogen at 1 atmospheric pressure and helium at 2 atmospheric pressure If both samples are at same temperature the r m s velocity...
- Q 18 Read the given statements and decide which is are correct on the basis of kinetic theory of gases 1 Energy of one molecule at absolute temperature is zero II...
- Q An ideal gas occupies a volume V at a pressure P and absolute temperature T The mass of each molecule is m If K is the Boltzmann s constant then...
- Q 7 Heat Q is supplied to a solid to raise its temperature T across its melting point TM and boiling point TB Which of the following graphs correctly represents the...
- Q 4 A cylinder of capacity 44 8 litres contains helium gas at standard temperature and pressure What amount of heat is needed to raise the temperature of gas in cylinder...
- Q 3 Average potential energy of molecules 4 Speed of the gas molecule 13 If three molecules have speeds of 2000 ms 1 1000 ms 1 and 500 ms the ratio...
- Q 3 Four times 4 Remains same 12 Pressure of a gas at constant volume is proportional to NCERT Pg 325 1 Total internal energy of gas 2 Square of average...
- Q A vessel contains a mixture of 1 mole of oxygen and 2 moles of nitrogen at 300 K The ratio of average rotational kinetic energy per O molecule to that...
- Q A mixture of ideal gas contains 5 moles of monatomic gas and 1 mole of rigid diatomic gas initially at pressure Po volume Vo and temperature To If the gas...
- Q Discus the shape A sample of gas occupies 10 ltr under a pressure 1 atm what will be volume if the pressure is increase to 2 atm Assume that the...
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