366376 A thermally insulated vessel contains some water at \(0^\circ C\). The vessel is connected to a vacuum pump to pump out water vapour. This results in some water getting forzen. It is given latent heat of vaporisation of water at \(0^\circ C = 21 \times {10^5}\;J/kg\) and latent heat of freezing of water \( = 3.36 \times {10^5}\;J/kg\). The maximum percentage amount of water vapour that will be solidified in this manner will be

366377 Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remains unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is \(T\), density of liquid is \(\rho\) and \(L\) is its latent heat of vaporisation.

366378 A large block of ice is placed on a table when the surroundings are at less than \(0^\circ C\)

366379 In an industrial process \(10\;kg\) of water per hour is to be heated from \(20^\circ C\) to \(80^\circ C\). To do this steam at \(150^\circ C\) is passed from a boiler into copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at \(90^\circ C\). How many kilogram of steam is required per hour (specific heat of steam \( = 1\,cal/gm\,^\circ C\), latent heat of vaporization \( = 540\,cal/gm)\) ?

366376 A thermally insulated vessel contains some water at \(0^\circ C\). The vessel is connected to a vacuum pump to pump out water vapour. This results in some water getting forzen. It is given latent heat of vaporisation of water at \(0^\circ C = 21 \times {10^5}\;J/kg\) and latent heat of freezing of water \( = 3.36 \times {10^5}\;J/kg\). The maximum percentage amount of water vapour that will be solidified in this manner will be

366377 Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remains unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is \(T\), density of liquid is \(\rho\) and \(L\) is its latent heat of vaporisation.

366378 A large block of ice is placed on a table when the surroundings are at less than \(0^\circ C\)

366379 In an industrial process \(10\;kg\) of water per hour is to be heated from \(20^\circ C\) to \(80^\circ C\). To do this steam at \(150^\circ C\) is passed from a boiler into copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at \(90^\circ C\). How many kilogram of steam is required per hour (specific heat of steam \( = 1\,cal/gm\,^\circ C\), latent heat of vaporization \( = 540\,cal/gm)\) ?

366376 A thermally insulated vessel contains some water at \(0^\circ C\). The vessel is connected to a vacuum pump to pump out water vapour. This results in some water getting forzen. It is given latent heat of vaporisation of water at \(0^\circ C = 21 \times {10^5}\;J/kg\) and latent heat of freezing of water \( = 3.36 \times {10^5}\;J/kg\). The maximum percentage amount of water vapour that will be solidified in this manner will be

366377 Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remains unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is \(T\), density of liquid is \(\rho\) and \(L\) is its latent heat of vaporisation.

366378 A large block of ice is placed on a table when the surroundings are at less than \(0^\circ C\)

366379 In an industrial process \(10\;kg\) of water per hour is to be heated from \(20^\circ C\) to \(80^\circ C\). To do this steam at \(150^\circ C\) is passed from a boiler into copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at \(90^\circ C\). How many kilogram of steam is required per hour (specific heat of steam \( = 1\,cal/gm\,^\circ C\), latent heat of vaporization \( = 540\,cal/gm)\) ?

366376 A thermally insulated vessel contains some water at \(0^\circ C\). The vessel is connected to a vacuum pump to pump out water vapour. This results in some water getting forzen. It is given latent heat of vaporisation of water at \(0^\circ C = 21 \times {10^5}\;J/kg\) and latent heat of freezing of water \( = 3.36 \times {10^5}\;J/kg\). The maximum percentage amount of water vapour that will be solidified in this manner will be

366377 Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remains unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is \(T\), density of liquid is \(\rho\) and \(L\) is its latent heat of vaporisation.

366378 A large block of ice is placed on a table when the surroundings are at less than \(0^\circ C\)

366379 In an industrial process \(10\;kg\) of water per hour is to be heated from \(20^\circ C\) to \(80^\circ C\). To do this steam at \(150^\circ C\) is passed from a boiler into copper coil immersed in water. The steam condenses in the coil and is returned to the boiler as water at \(90^\circ C\). How many kilogram of steam is required per hour (specific heat of steam \( = 1\,cal/gm\,^\circ C\), latent heat of vaporization \( = 540\,cal/gm)\) ?