Physics
An air bubble of volume 1.0cm 3 rises from the bottom of a lake 40 m deep at a temperature of 12 ∘C. To what volume does it grow when it reaches the surface which is at a temperature of 35 ∘C ?
13
Sep
An air bubble of volume 1.0cm 3 rises from the bottom of a lake 40 m deep at a temperature of 12 ∘C. To what volume does it grow when it reaches the surface which is at a temperature of 35 ∘C ? An air bubble of volume 1.0cm 3 rises from the bottom of [...]
An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = 8.31 J mol–1 K–1 , molecular mass of O2 = 32 u).
13
Sep
An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder, the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = [...]
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An oxygen cylinder of volume 30 litres has an initial gauge pressure of 15 atm and a temperature of 27 °C. After some oxygen is withdrawn from the cylinder ,
molecular mass of O2 = 32 u). ,
the gauge pressure drops to 11 atm and its temperature drops to 17 °C. Estimate the mass of oxygen taken out of the cylinder (R = 8.31 J mol–1 K–1 ,
Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0 C). Show that it is 22.4 litres.
13
Sep
Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature and pressure (STP : 1 atmospheric pressure, 0 C). Show that it is 22.4 litres. 0 C). Show that it is 22.4 litres. Molar volume is the volume occupied by 1 mol of any (ideal) gas at standard temperature [...]
Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3A˚.
13
Sep
Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3A˚. Estimate the fraction of molecular volume to the actual volume occupied by oxygen gas at STP. Take the diameter of an oxygen molecule to be 3A˚. September 13, 2021 [...]
A steam engine delivers 5.4 × 10^8 J of work per minute and services 5.6 × 10^9 J of heat per minute from its boiler. What Is the efficiency pf the heat engine? How much heat is wasted per minute
13
Sep
A steam engine delivers 5.4 × 10^8 J of work per minute and services 5.6 × 10^9 J of heat per minute from its boiler. What Is the efficiency pf the heat engine? How much heat is wasted per minute A steam engine delivers 5.4 × 10^8 J of work per minute and services 5.6 [...]
An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 joules per second. At what rate is the internal energy increasing?
13
Sep
An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 joules per second. At what rate is the internal energy increasing? An electric heater supplies heat to a system at a rate of 100W. If system performs work at a rate of 75 [...]
A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Fig. Its volume is then reduced to the original value from E to F by an isobaric process. Calculate the total work done by the gas from D to E to F
13
Sep
A thermodynamic system is taken from an original state to an intermediate state by the linear process shown in Fig. Its volume is then reduced to the original value from E to F by an isobaric process. Calculate the total work done by the gas from D to E to F A geyser heats water [...]
In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B, an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 cal, how much is the net work done by the system in the latter case? (Take 1 cal = 4.19 J)
13
Sep
In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B, an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 [...]
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an amount of work equal to 22.3 J is done on the system. If the gas is taken from state A to B via a process in which the net heat absorbed by the system is 9.35 cal ,
how much is the net work done by the system in the latter case? (Take 1 cal = 4.19 J) ,
In changing the state of a gas adiabatically from an equilibrium state A to another equilibrium state B ,
Two cylinders A and B of equal capacity are connected to each other via a stop clock. The cylinder A contains an ideal gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stop cock is suddenly opened.
13
Sep
Two cylinders A and B of equal capacity are connected to each other via a stop clock. The cylinder A contains an ideal gas at standard temperature and pressure. B is completely evacuated. The entire system is thermally insulated. The stop cock is suddenly opened. A geyser heats water flowing at the rate of 3.0 [...]
A cylinder with a movable piston contains 3 moles of hydrogen at standard temperature and pressure. The walls of the cylinder are made of a heat insulator, and the piston Is Insulated by having a pile of sand on it. By what factor does the pressure of the gas its original volume?
13
Sep
A cylinder with a movable piston contains 3 moles of hydrogen at standard temperature and pressure. The walls of the cylinder are made of a heat insulator, and the piston Is Insulated by having a pile of sand on it. By what factor does the pressure of the gas its original volume? A cylinder with [...]