For quick preparation of a cup of hot chocolate in a cafeteria, cocoa powder and sugar are
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For quick preparation of a cup of hot chocolate in a cafeteria, cocoa powder and sugar are added in a cup of water and the solution is heated by direct steam injection. If the initial temperature of all the ingredients is 15 degree C, the final temperature is 95 degree C. the mass of the solution is 150g initially, and the heat capacity of the solution is 3.8 k.J/kg degree C, calculate how much saturated steam at 110 degree C will be used. State your assumptions.
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