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Consider two containers A and B containing identical gases at the same pressure, volume and temperature. The gas in container A is compressed to half of its original volume isothermally while the gas in container B is compressed to half of its original value adiabatically. The ratio of final pressure of gas in B to that of gas in A is ?
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Consider two containers A and B containing identical gases at the same pressure, volume and temperature. The gas in container A is compressed to half of its original volume isothermally while the gas in container B is compressed to half of its original value adiabatically. The ratio of final pressure of gas in B to that of gas in A is ?

Anonymous User Physics 04 May, 2019 0 Answer 78 views

The relative density of a metal may be found by hanging a block of the metal from a spring balance and noting that in air the balance reads (5 ± 0.05) N while in water it reads (4 ± 0.05)N. The relative density would be quoted as:
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The relative density of a metal may be found by hanging a block of the metal from a spring balance and noting that in air the balance reads (5 ± 0.05) N while in water it reads (4 ± 0.05)N. The relative density would be quoted as:

Anonymous User Physics 04 May, 2019 1 Answer 707 views

A shell is fired at a speed of 200 m/s at an angle of 37° above horizontal from top of a tower 80m high. At the same instant another shell was fired from a jeep travelling away from the tower at a speed of 10 m/s as shown. The velocity of this shell relative to jeep is 250 m/s at an angle of 53° with horizontal. Find the time (in sec) taken by the two shells to come closest?
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A shell is fired at a speed of 200 m/s at an angle of 37° above horizontal from top of a tower 80m high. At the same instant another shell was fired from a jeep travelling away from the tower at a speed of 10 m/s as shown. The velocity of this shell relative to jeep is 250 m/s at an angle of 53° with horizontal. Find the time (in sec) taken by the two shells to come closest.

Anonymous User Physics 04 May, 2019 1 Answer 499 views

work

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a body freely falls from certain height onto ground in time t during first 1/3rd of time interval it gains ake1 and during last 1/3 rd of intervalit gains ke2 the ratio of ke1/ke2 is

Anonymous User Physics 02 May, 2019 1 Answer 82 views

The boiling point of benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. Kb for benzene is 2.53 K kg mol–1
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The boiling point of benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. Kb for benzene is 2.53 K kg mol–1 

Rajkumar Yadav Chemistry 01 May, 2019 1 Answer 283 views

The vapour pressure of pure benzene at a certain temperature is 0.850 bar. A non-volatile, non-electrolyte solid weighing 0.5 g when added to 39.0 g of benzene (molar mass 78 g mol-1). Vapour pressure of the solution, then, is 0.845 bar. What is the molar mass of the solid substance?
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The vapour pressure of pure benzene at a certain temperature is 0.850 bar. A non-volatile, non-electrolyte solid weighing 0.5 g when added to 39.0 g of benzene (molar mass 78 g mol-1). Vapour pressure of the solution,
then, is 0.845 bar. What is the molar mass of the solid substance?

Anonymous User Chemistry 01 May, 2019 1 Answer 350 views

Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 298 K are 200 mm Hg and 415 mm Hg respectively. (i) Calculate the vapour pressure of the solution prepared by mixing 25.5 g of CHCl3 and 40 g of CH2Cl2 at 298 K and, (ii) mole fractions of each component in vapour phase.
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Vapour pressure of chloroform (CHCl3) and dichloromethane (CH2Cl2) at 298 K are 200 mm Hg and 415 mm Hg respectively. (i) Calculate the vapour pressure of the solution prepared by mixing 25.5 g of CHCl3 and 40 g of H2Cl2 at 298 K and, (ii) mole fractions of each component in vapour phase.

Anonymous User Chemistry 01 May, 2019 1 Answer 10585 views

If N2 gas is bubbled through water at 293 K, how many millimoles of N2 gas would dissolve in 1 litre of water. Assume that N2 exerts a partial pressure of 0.987 bar. Given that Henry’s law constant for N2 at 293 K is 76.48 kbar.
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If N2 gas is bubbled through water at 293 K, how many millimoles of N2 gas would dissolve in 1 litre of water. Assume that N2 exerts a partial pressure of 0.987 bar. Given that Henry’s law constant for N2 at 293 K is
76.48 kbar.

Anonymous User Chemistry 01 May, 2019 1 Answer 4601 views

law of motion
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a mass of 3kg descending vertically downward supports a mass 2 kg by means of light string passing over a pulley at end of 5 sec the string breaks how much higher 2kg mass will go

Anonymous User Physics 30 Apr, 2019 1 Answer 141 views

In a uniform electric field, a cube of side 1 cm is placed. The total energy stored in the cube is 8.85μJ. The electric field is parallel to four of the faces of the cube. The electric flux through any one of the remaining two faces is.
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In a uniform electric field, a cube of side 1 cm is placed. The total energy stored in the cube is 8.85μJ. The electric field is parallel to four of the faces of the cube. The electric flux through any one of the remaining two faces is.

Anonymous User Physics 28 Apr, 2019 1 Answer 1291 views

Suppose that two heat engines are connected in series, such that the heat exhaust of the first engine is used as the heat input of the second engine as shown in figure. The efficiencies of the engines are n1 and n2, respectively. The net efficiency of the combination is given by?
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Suppose that two heat engines are connected in series, such that the heat exhaust of the first engine is used as the heat input of the second engine as shown in figure. The efficiencies of the engines are n1 and n2, respectively. The net efficiency of the combination is given by?

Anonymous User Physics 28 Apr, 2019 1 Answer 1459 views

A magnet is suspended in such a way when it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30 and 15 oscillations per min at a place where dip angle is 60 . Find the ratio of the total earth's magnetic field at the two places?
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A magnet is suspended in such a way when it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30 and 15 oscillations per min at a place where dip angle is 60 . Find the ratio of the total earth's magnetic field at the two places?

Anonymous User Physics 26 Apr, 2019 0 Answer 109 views