Explain how to calculate the final temperature

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Reference no: EM13498271

1. Consider a 75.0 gram sample of H2O(g) at 125 degrees Celsius. What phase or phases are present when 215 KJ of energy is removed from this sample?

2. A 0.250 gram chunk of sodium metal is cautiously dropped into a mixture of 50.0 grams of water and 50.0 grams of ice, both at 0 degrees Celsius. The reaction is 2Na(s)+2H2O(l) yields 2NaOH(aq)+H2(g) enthalpy=-368 KJ.
Will the ice melt? Assuming the final mixture has a specific heat capacity of 4.18 J/g*degrees celsius, calculate the final temperature. The enthalpy of fusion for ice is 6.02 KJ/mol.

Reference no: EM13498271

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