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    Energy required to convert ice to steam ?

    Homework Statement Find the energy required to change ' X " mass of ice at -18 degrees celcius to steam at 100 degrees celcius. Latent heat of fusion : 336 000 Lt heat of evaporaton : 2300000 SHC water : 4200 SHC ice : 2108 Homework Equations Q=mcΔθ Q=m x latent heat...
  2. S

    Heat of vaporization ( thermal physics) helppp pleasee ?

    A student suspects that the power rating on an immersion heater is 50 W but he is not sure.He sets up an apparatus as shown. After the liquid has been brought to its boiling point, he finds that 3.5g of vapor escaped each minute through the outlet tube.The boiling point of the liquid is 80...
  3. S

    Air passes over an electrical heater at a steady rate of 2500cm^3 per second.

    Thanks I got it out eventually :D :)
  4. S

    Air passes over an electrical heater at a steady rate of 2500cm^3 per second.

    Thanks a lot :D I got out the question and I saw my error- :)
  5. S

    Air passes over an electrical heater at a steady rate of 2500cm^3 per second.

    Homework Statement Air passes over an electrical heater at a steady rate of 2500cm^3 per second. The inlet temperature of the air is 20^oC ( 20 degrees celcius ) and the steady outlet temperature is 40^0C ( 40 degrees celcius) a) What heat is absorbed by air passing over the heater in 2...
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