Physics question and answers for February 23, 2024
- Q When heat enters from surounding into system is always O Negative O Positive O Neutral In flow work changes Pressure O Volume O Temperature 1 poi 1 poi
- Q Total energy content in system 1 point is mostly contain O U W O U H O U Q The property heat mostly related to O Temperature difference Pressure difference...
- Q When Process goes from initial 1 point to final state is called as O Forward O Backward O Cyclic Some processes are return back to initial state are called as...
- Q An ideal gas containing n moles whose ratio of specific heats is 59 39 undergoes a change according to the relation P Po a V where Po and a are...
- Q An ideal gas undergoes a process such that P T The molar heat capacity of this process is 33 24 J mol K A The work done by the gas...
- Q An ideal gas undergoes a process such that Px T The molar heat capacity of this process is 33 24 J mol K A The work done by the gas...
- Q A spherical bubble inside water has radius R Take the pressure inside the bubble and the water pressure to be po The bubble now gets compressed radially in an adiabatic...
- Q II Attempt any four sub parts each question carries 1 mark 1X4 4 5 Carnot engine is an ideal heat engine which converts heat energy into mechanical energy Efficiency of...
- Q The pressure and volume of a gas are changed as shown in the P V diagram in this figure The temperature of the gas will P A D B C...
- Q 6 A composite bar of 20 mm x 20 mm cross section is made up of three flat bars as shown in Fig 1 74 All the three bars are...
- Q Column I contains a list of processes involving expansion of an ideal gas Match this with Column II describing the thermodynamic change during this process Indicate your answer by darkening...
- Q A two stroke cycle diesel engine compression ignition internal combustion engine of a large ship has eight cylinders each of 900 mm bore and with a stroke of 2400 mm...
- Q 13 One mole of an ideal gas is taken from state A to state B by three different processes Qls Disp P C B D E A V i ACB...
- Q 11 An ideal gas undergoes a hypothetical cyclic process as follows P Pressure V Volume PA a V Now choose the correct statement 1 During process ab temperature increases 2...
- Q In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B an amount of work equal to 104 6 J is done on...
- Q An adiabatic cylindrical vessel is divided into three compartments by two adiabatic pistons connected by a rigid rod Compartments 1 and 3 each contain the same ideal gas y 1...
- Q Two samples A and B of the same gas have equal volumes and pressures The gas in sample A is expanded isothermally to double its volume and the gas in...
- Q If a gas is allowed to expand adiabatically against external pressure O There is decrease in internal energy of gas Pressure remains constant O Its temperature remains constant O There...
- Q is 11 An ideal gas of adiabatic exponent Y 5 expanding at constant pressure The ratio of dQ dU dW is Symbols have their usual meanings NCERT Pg 309 1...
- Q 4 Which of the following is incorrect NCERT Pg 305 1 If two systems A and B are in thermal equilibrium with system C separately then A and B will...
- Q The internal energy of a gas is 20 J It undergoes a thermodynamic process such that 35 J of heat is added to the system and it does 5 J...
- Q No 19 An ideal gas goes from state A to state B via three different processes as indicated in the P V diagram If Q Q2 Q3 indicate the heat...
- Q 3 A and B 4 Only E 5 A Carnot engine with sink s temperature at 17 C has 50 efficiency By how much should its source temperature be changed...
- Q Solvelancer Test If a single viral particle of corona virus contains 10 spikes then calculate the total number of spikes in 5 moles of corona virus Solvelancer Test a 6...
- Q ree moles of an ideal monoatomic gas perform a cycle shown in figure The gas temperature in different states are T 200 K T 400 K T3 1600 K and...
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