Physics question and answers for February 20, 2024
- Q the state passes through the critical point Determine a The volume of the vessel b The mass of liquid and ofxqug in the vessel initially Properties of Pure Substances S...
- Q d 150 J of heat has been added to the gas 6 1 mole of an ideal gas ina cylindrical container p have the P V diagram as shown in...
- Q 1 What is the enthalpy of a system with a diatomic gas whose pressure is 10 000 Pa and volume 20 L Enter your answer in Joules 2 A monatomic...
- Q 3 At the same temperature will a gas of classical molecules a gas of boson or a gas of fermions exert the greatest pressure The least pressure Why 4 The...
- Q 10 Three cylindrical vessels identical in all respect except in their heights are completely filled with water Volumes of the first second and the third vessels are V 1 0...
- Q B 1 A closed system executes a quasi static process from an initial state 1 to a final state 2 absorbing Qu 80 kJ of heat and expanding from V...
- Q 2 A rigid container contains m 3 kg of air The air changes its state from an initial state of p 0 5 MPa and T 75 to its final...
- Q A diatomic gas which has initial volume of 10 litre is isothermally compressed to 1 15th of its original volume where initial pressure is 105 Pascal If temperature is 27...
- Q 22 The upper beam in Fig is supported at D and a roller at C which separates the upper and lower eams Determine the values of the reactions at A...
- Q potassium permanganate KMnO4 of different concentrations n and n n n molecules pe unit volume with An n n n When they are connected by a tube of small length...
- Q A 5 litre of vessel contains 2 mole of oxygen gas at pressure of 8 atmosphere The average translational kinetic energy of oxygen molecule under this condition is 8 4...
- Q A gas undergoes a cyclic process ABCDA as shown in the figure The part ABC of process is semicircular The work done by the gas is B P N m...
- Q Six moles of an ideal gas performs a cycle shown in figure If the temperature are TA 600 K TB 800 K Tc 2200 K and Tp 1200 K the...
- Q 1 Which of the following has high specific heat A Hg B Fe C Ice D Water 2 The temperature T of two samples of the same substances with masses...
- Q A carnot engine absorbs an amount Q of heat from a reservoir at an absolute temperature T and rejects heat to a sink at a temperature of T The amount...
- Q The P V diagram of a system undergoing thermodynamic transformation is shown in figure The work done on the system in going from A B C is 50 J and...
- Q 540 g of ice at 0 C is mixed with 540 g of water at 80 C The final temperature of the mixture is Given latent heat of fusion of...
- Q A sample of an ideal gas is taken through the cyclic process abca shown in the figure The scale of the vertical axis is set by pb 8 7 kPa...
- Q The work done in an isochoric process is a function of the temperature only You missed this answer Cp Cv for all gases without exception The work done by a...
- Q A rectangular box of length consisting of two chambers of length 1 2 each separated by a smooth piston lies on a horizontal surface with the piston being movable along...
- Q Two substances A and B of equal mass m are heated at uniform rate of 6 cal s under similar conditions A graph between temperature and time is shown in...
- Q A chromatography column with a length of 10 3 cm and inner diameter of 4 61 mm is packed with a stationary phase that occupies 61 0 of the volume...
- Q 3 A system containing air undergoes a change of state from pi v to p2 V2 whose values are 0 5 MPa 0 287 m kg and 0 1 MPa...
- Q 40 A carnot engine has efficiency 25 It operates between reservoirs of constant temperatures with temperature difference of 80 K What is the temperature of the cold reservoir a 29...
- Q neg d The collision between molecules is elastic 2 In the given V T diagram what is the relation between pressure P and P P P c P P P...
- Q Find the change in the internal energy of 453 6 gr of O2 assume ideal gas heated from 20 C to 30 C at constant pressure of 1 atm Calculate...
- Q c 18 2 c c d 20 2 c c 9 Two cylinders A and B fitted with pistons contain equal amounts of an ideal diatomic gas at 300K The...
- Q 8 If quantity of heat 1163 4 J supplied to one mole of nitrogen gas at room temperature at constant pressure then the rise in temperature is a 54 K...
- Q 3 Heat is supplied to a diatomic gas at constant pressure The ratio between heat energy supplied and work done is y for diatomic gas 7 5 a 3 4...
- Q A sample of ideal gas of some mass is taken through the cycle process shown in the figure The temperature of the gas at state A is T 200K and...
- Q An ideal gas undergoes a process in which its pressure P and volume V obey P V constant Bulk modulus of gas in the process is 1 P 2 Px...
- Q A constant volume gas thermometer shows pressure reading of 50 cm and 90 cm of mercury at 0 C and 100 C respectively When the pressure reading is 60 cm...
- Q 34 A thermoflask made of stainless steel contains serveral tiny lead shots If flask is quickly shaken up and down several times the temperature of lead shots a Increase b...
- Q a a 4 P V 3V V c 6 P V d 15 P Vo 0 19 For the process as shown below the heat supplied to the system is...
- Q 36 A carnot engine working between 300 K and 600 K has work output of 800 J sec The amount of heat energy supplied from the source of engine in...
- Q 35 A carnot engine extract heat from water at 0 C and rejects it to room at 24 4 C The work required by the refrigerator for every 1 kg...
- Q V 19 For a certain mass of gas the isothermal curves between P 2 303 RT log and V at T and T temperatures are 1 and 2 as shown...
- Q 14 If Q E and W denote respectively the heat added change in internal energy and the work done in a closed cyclic process then which of these will follow...
- Q d 0 028 x 106 If Qaf 80 cal W 60 cal and W 30 cal for the iaf curved path f i then value of Q for path f...
- Q One mole of ideal monoatomic gas at initial state a with pressure P and v is taken to a final state d with pressure through the path a b c...
- Q 336 W Power t 60 Two liquids A and B are at 32 C and 24 C When mixed in equal masses the temperature of the mixture is found to...
- Q Q 1 In different experiments an ideal gas is expanded through i Isothermal ii Adiabatic iii Isobaric process 65 In which of the processes mentioned the internal energy of the...
- Q 2 x 10 P Pa 1 x 10 D B C T 1 414 R The net work done on the gas in the cycle ABCDA is 2 276 R...
- Q j A manufacturer claims to have constructed an engine tha has an efficiency of 35 when operated between th Boiling point of water and the freezing point of water Is...
- Q An insulated container of gas has two chambers separated by an insulating partition One of the chambers has volu V and contains ideal gas at pressure p and temperature T...
- Q tate quid opy orn 4 If the ratio of specific heat of gas at constant pressure to that at constant volume is y the change in internal energy of mass...
- Q 7 An ideal monoatomic gas undergoes a process in which its internal energy U and density p vary as Up constant The ratio of change in internal energy and the...
- Q 6 The internal energy of a gas is given by U 2pV It expands from Vo to 2Vo against a constant pressure Po The heat absorbed by the gas in...
- Q 1 V 11 Figure shows a parabolic graph between T and T temperature V Volume for a gas undergoing an adiabatic process If the ratio of rms velocity of molecules...
- Q 3 Two identical containers joined by a small pipe initially contain the same gas at pressure po and absolute temperature To One container is now maintained at the same temperature...
- Q A glass mug contains 100 g coffee at 20 C If heat is added to it at the rate of 1 cal s how much time would it take for...
- Q 8 Rate of heat flow through a cylindrical rod is H Temperatures of ends of rod are T and T If all the difference remains same and rate of heat...
- Q During which of the following thermodynamic process represented by PV diagram the heat energy absorbed by system may be equal to area under PV graph 1 3 PA A PA...
- Q An ideal rigid diatomic gas undergoes expansion at constant pressure when AQ heat is added to it What is the ratio of the change in the internal energy AU to...
- Q 5 An ideal gas of mass m in a state A goes to a another state B via three different processes If Q Q and Q3 denote the heat absorbed...
- Q 17 A diatomic gas undergoes a process represented by PV1 3 constant Choose the incorrect statement 1 The gas expands by absorbing heat from the surroundings 2 The gas cools...
- Q Two identical masses of 5 kg each fall on a wheel from a height of 20 m The whee disturbs a mass of 4 kg water the rise in temperature...
- Q 5 Point One pound of air with an initial temperature of 200 F is allowed to expand without flow between pressure of 90 and 15 psia If the air is...
- Q There are 7 gas molecules in a closed container The volume of the container increases by a factor of 3 in such a way that the temperature of the gas...
- Q Example 3 16 A monatomic van der Waals gas is contained in a cylinder of molar olume 0 8 lit mol at a pressure of 36 atm If a 4...
- Q A cylinder is made of perfectly thermally insulating material so that its contents are thermally isolated from the environment The cylinder contains an ideal gas It is closed with a...
- Q MATCHING LIST TYPE This section contains 4 questions each having two matching lists List 1 List II The options for the correct match are provided as A B C and...
- Q In Fig 20 25 where V23 3 00V n moles of a diatomic ideal gas are taken through the cycle with the molecules rotating but not oscil lating What are...
- Q The diagram shows the adiabatic curve for n moles of an ideal gas The bulk modulus for the gas corresponding to the point P will be 1 SnRT 3V 5V...
- Q 13 A 100 watt electric heating element is placed in a pan containing one liter of water Although the heating element is on for a long time the water though...
- Q Sin x 10 t x c 2 The sun delivers 104 W m of electromagnetic flux to the earth s surface The total power that is incident on a roof...
- Q The following P V graph shows five different thermodynamics process of an ideal gas The processes numbered 1 and 3 are one of them adiabatic and the other isothermal Temperature...
- Q In a thermodynamic T law constant The heat given to the gas when p2 5 temperature of 4 moles of gas is raised from T to 2T is 1 8RT...
- Q Figure shows three paths connecting points a and b A single force F does indicated work on the particle moving along each path in indicated direction On the basis of...
- Q Q 15 0 336 m of gas at 10 bar and 150 C expands adiabatically until its pressure is 4 bar It is then compressed isothermally to its original volume...
- Q 3 The molar heat capacity of a certain substance varies with temperature T as c a bT where a 27 2 J mol K 1 and b 4 x 10...
- Q The graph of pressure versus volume of a monoatomic ideal gas is as shown What is the internal energy of the system in state 1 and the heat given to...
- Q Q 18 A perfect gas undergoes the following three separate and distinct processes to execute a cycle i Constant volume process during which 80 kJ of heat is supplied to...
- Q Q 16 A fluid is confined in a cylinder by a spring loaded friction less piston so that the pressure in the fluid is a linear function of the volume...
- Q An ideal gas is taken through a cyclic thermodynamic process through four steps The amounts of heat given to the system in these steps are Q 1000 J Q 800...
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