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In an experiment to determine the specific latent heat of vaporization of water, steam at 100ºC was passed into water contained in a well-lagged copper...

      

In an experiment to determine the specific latent heat of vaporization of water, steam at 100ºC was passed into water contained in a well-lagged copper calorimeter. The following measurements were made:
- Mass of calorimeter = 55g
- Initial mass of water = 75g
- Final mass of calorimeter + water + condensed steam = 133g
- Final temperature of the mixture = 30ºC
[Specific heat capacity of water = 4200JKgˉ¹kˉ¹ and specific heat capacity of copper= 390JKgˉ¹kˉ¹]
(i) mass of condensed steam.
heat gained by the calorimeter and water if the initial temperature of the
calorimeter + water = 20ºC.
(ii) given that L is the specific latent heat of vaporization of steam,
(I) Write an expression for the heat given out by steam.
(II) Determine the value of L.

  

Answers


sharon
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sharon kalunda answered the question on September 26, 2019 at 14:30


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