Physics question and answers for February 24, 2024
- Q A particle of mass m and charge q is tied to a string of length L in gravity free space A uniform electric field E is applied as shown in...
- Q For an ideal gas the change in internal energy in a constant pressure process from temperature T to T is equal to nCv T2 T where Cy is the molar...
- Q A slab consists of two parallel layers of two different materials of same thickness having thermal conductivities K and K The equivalent conductivity of the combination is T A B...
- Q e bulb of a mercury thermometer is placed first in melting ice at standard pressure then in mam at standard pressure and at last in a liquid X The lengths...
- Q A cylindrical isotropic solid of coefficient of linear expansion and density p floats in a liquid of coefficient volume expansion y and density d as shown in the diagram 1...
- Q half of its volume If P V and I represent the pressure volume and temperature of the gaseous system respectively then the correct equation representing the process is A TV...
- Q One mole of a diatomic gas is taken from P to Q Q to R and R to S If the total work done by the gas is All and...
- Q Steam locomotives have an efficiency of 19 0 and operate with a hot steam temperature of 475 C a What would the cold reservoir temperature in C be if this...
- Q 0 Zeroth Law 1 First Law 2 Second Law 3 Third Law A skier is riding on a surface ski lift Suddenly he loses grip from the seat and starts...
- Q 44 p T diagram was obtained when a given mass of gas was heated During the heating process from the state 1 to state 2 the volume P 0 1...
- Q 54 A steady current of 1 5 A flows throug voltameter for 10 minutes If the elect equivalent of copper is 30 x 10 5 g cou mass of copper...
- Q In which process does the heat capacity not depend on the parameters and is always equal to infinity Which one is always zero Express the heat capacity of the process...
- Q Two moles of helium gas are taken over the cycle ABCDA as shown in the P T diagram Use In2 0 7 P Pa 4x105 2 105 A B D...
- Q Two mechanical waves y 2 sin 2 50 t 2x y 4 sin 2m ax 100 t propagate in a medium wit same speed 1 The ratio of their intensities...
- Q A steel rod at 25 C is bolted at both ends and then cooled By how many C should the rod be cooled so N that it will rupture Assume...
- Q A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in figure Its volume is then reduced to the original value from...
- Q 0 02 moles of an ideal gas undergo a cycle consisting of an isochoric process an isobaric process and an isothermal process as shown below Volumes and pressures at specific...
- Q Copper has a coefficient of volume expansion of 51 x 109 1 C A copper kettle is at 23 0 C When the water inside and kettle is heated 100...
- Q nation mathongo mathongo matnongo mathongo In the reported figure there is a cyclic process ABCDA on a sample of 1 mol of a diatomic gas The mathonge mathongo mathongo temperature...
- Q 98 The pressure and density of a diatomic gas Q 98 va face the x 7 change adiabatically from P p to P p If 128 then is equal to...
- Q 41 shown in figure P4 B A D increasing d None of the above P gas is AQ wi 1730 a during the process AB work done by the gas...
- Q Consider a thermodynamic system which goes from i to T through the process shown in figure here Then work is done h D By the system through out the path...
- Q 0 5 mole of an ideal gas maintained at constant temperature 27 C is kept inside a cylinder of cross sectional area A closed by a massless piston The cylinder...
- Q Question No 30 The temperature entropy diagram of a reversible engine cycle is given in the figure Its efficiency is TA 2To To So 250 S
- Q 5 18 pts An imaginary ideal gas heat engine operates on the following cycle 1 increase the pressure of the gas at constant volume V from P2 to P 2...
- Q 6 The graph shown below depicts a cyclic process PQRP for 1 mole of an ideal gas with point A being an initial state The pressure of this gas at...
- Q ALLE All India Open Test Leader Test Series Joint Package Course JEE Advanced PAPER 1 In the arrangement shown in the figure the cylinder is insulated from the surrounding Both...
- Q A composite object is formed by combining a uniform rod of circular cross section with thermal conductivity k and a frustum with thermal conductivity 2k as shown in the figure...
- Q 28 A gas contained a cylinder fitted with a friction less piston expands against a constant pressure 1 atm from a volume of 4 litre to volume of 14 litre...
- Q J mol K An ideal gas has Cy 12 5 Calculate the heat absorbed by 24 mol of the gas at constant volume V 132 960 0 L when the...
- Q agnetic field of earth is 0 3 gauss A magnet oscillating with rate of 5 oscillation min How much the magnetic field of earth the number of oscillations become 10...
- Q Three moles of an ideal monoatomic gas perform cycle as shown The gas temperature in different states are T 400 K T 800 K T3 2400 K T41200 K Net...
- Q One mole of an ideal monatomic gas is taken round the cyclic process ABCA as shown in Figure Calculate 1998 8 Marks 3P Vo a the work done by the...
- Q P V diagram of an ideal gas is as shown Find work 3 done by the gas in ABCD process P 2P P B V 2V 3V 1 4P V...
- Q When 1360 J of heat are added to one mole of an deal monatomic gas its temperature increases from 272 K to 275 K Part A Find the work done...
- Q An ideal gas containing N particles undergoes an isobaric pressure is constant expansion from initial volume V to a final volume Vy Choose the right statement s regarding the heat...
- Q The initial temperature of a two mole of a gas is T If temperature increases to 3T then work done in the adiabatic process is 6 RT The gas is...
- Q 57 A movable piston separates a sample of gas from vacuum In this state pressure of a gas is P then find pressure after piston is released adiabatic wall 1...
- Q 2 54 An electric heater has coil resistance of 1202 and is operated from 220 V power line If no heat escapes from it then how much time is required...
- Q B3 ALLEN Two moles of helium gas undergo a cyclic 33 process as shown in figure Assuming the gas to be ideal the net work done by the gas is...
- Q 3 4 400RIn2 A cyclic process ABCD is shown in the 34 following P V diagram Which of the following curves represents the same process Isothermal 2 V st Leader...
- Q 4 The total emitted energy will increase to 8 times The density p versus pressure P graphs of a 9 given mass of an ideal gas is shown at two...
- Q which equation is correct a W Q b W Q c Q W O O b O c a when work goes from system to surrounding it is O Negative...
- Q Please open the attached file to view the figure upon which this question is based Question The work Wca is Question14 pdf 72 KB A 2 80 J B 2...
- Q The thermodynamic state of a gas is changed from A to B If you are told that AU is positive which of the following is true a Q 0 W...
- Q A sample of air has the following parameters pressure is 150 kPa volume is 5 m and temperature is 300 K Heat is lost to the surrounding and the final...
- Q The work done by the gas is the smallest for cycle 4 V O 1 P 2 cannot answer without additional information P V
- Q Figure shows the adiabatic curve on a log T and log V scale performed on ideal gas The The gas is A Monatomic B Diatomic C Polyatomic D Mixture of...
- Q Two moles of an ideal mono atomic gas undergo a cyclic process as shown in the figure The 3T2 2T4 T3 1800 K Determine the temperatures in different states are...
- Q taken round the cyclic process ABCA as shown in figure then 3P P B V 2V 1 Work done by the gas in ABCA process is PV 2 2 The...
- Q NEET PHYSICS Q 97 Two moles of an ideal monoatomic gas is Q 97 taken round the cyclic process ABCA as shown in figure then 3P P All India Major...
- Q At 4 C a thermos bottle holds 150 g of water At 100 C 90 g of metal is inserted inside The temperature of the water and the metal is...
- Q Single Choice The specific heats Cp and Cy of a diatomic gas A are 29 J mol K 1 and 22 J mol K respectively Another diatomic gas B has...
- Q Also explain same condition for exothermic reaction mol L s 6 25 x 10 mol L s For an endothermic reaction energy of activation is E and enthalpy of reaction...
- Q 7 5 is A certain quantity of 02 Y compressed isothermally until its pressure is doubled P the gas is then allowed to expand adiabatically until its origional volume is...
- Q A monoatomic ideal gas undergoes a cyclic process ABCDEA as shown in the P V diagram B isothermal and P3V P V3 Then which of the following curve s is...
- Q 98 A monoatomic ideal gas undergoes certain Q 98 process PV constant for which the molar heat capacity is zero The value of n equals 1 Infinite 2 zero 3...
- Q The entropy change for the process H O s H O 1 is 46 2 J K and requires that the surroundings transfer 17 9 kj of heat to the...
- Q what is the below formula what is the diffrent between them How I can use them explain the meaning of each letter specific heat of fusion resistivity E p e...
- Q A metallic wire with two masses each of mass m fixed at the two ends is passing over a slab of ice This wire passes through the ice slab without...
- Q 1 the gas is at pressure P If the mass of all cules is halved and their speed is doubled resultant pressure will be b P c P 2 d...
- Q E Two cylinders A and B of equal capacity are connected to each other via a stopcock A contains an ideal gas at standard temperature and pressure B is completely...
- Q monoatomic gas is shown in figure The molar specific heat of the gas in the process will be 1 C Poni joms telem kong mp 81 mp erigaomis bns 0...
- Q 288 es a nin Equation of State 10 A cylinder contains hydrogen gas at pressure of 249 kPa and temperature 27 C Its density is R 8 3J mol K...
- Q A container of neon gas has the following properties 1 0 5 moles 2 T 340 K 3 p 0 6 atm Calculate the Helmholtz free energy in kJ kilojoules...
- Q 37 The amount of heat required to raise the temperature of 1 mole of a monoatomic gas from 20 C to 30 C at constant volume is H Then the...
- Q 16 An ideal gas mixture filled inside a balloon expand according to the relation pV2 3 constant The temperature inside the balloon is a increasing b decreasing c constant d...
- Q a 8 J 23 A monoatomic gas is supplied the heat Q very slowly keeping the pressure constant The work done by the gas will be P 0Q 0 b...
- Q The value of Cp C R for a gas in state A and Cp Cy 1 1R in other state B If P and PR denote the pressure and T...
- Q 1 A body is cooling under Newton s law of cooling Temperature difference between body and surrounding falls from 80 C to 40 C in 20 minute Time in which...
- Q A monoatomic gas initially in state A PV is taken through a cyclic process ABCA as shown in the figure The pressure of point B is twice of that of...
- Q The value of Y 3 C V 759 5 3 7 577 for hydrogen helium and another ideal diatomic gas X whose molecules a not rigid but have an additional...
- Q An ideal monoatomic gas is confined in a horizontal cylinder by a spring loaded piston as shown in the figure Initially the gas is at temperature T pressure P and...
- Q 24 An ideal H gas undergoes a isothermal process according to the P V diagram shown The total heat given to the gas is nearly e IT B 3 14...
- Q A gas at state A changes to state B through path I and II shown in figure The change in internal energy is AU and AU2 respectively Then P 1...
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