Question

Ethanol has a vapor pressure of 58.3 torr at 25 degree C. Determine the delta H (we assume that delta H in independent of temperature). l_n (p_2/58, 3) = delta / (1/351, 4 - 1/298) A 0.250 g chunk of sodium metal is cautiously dropped into a mixture of 50.0 g of water wend 50.0 g of ice at 0 degree C. The reaction is: 2Na(s) 2H2O) + 2H_2O(l) rightarrow 2NaOH(aq) +H_2(g); delta H = -368 kJ. Will all the ice melt? Assuming the final mixture has a specific heat capacity of 4.18 J/g- degree C, calculate the final temperature. The enthalpy of fusion ice is 6.02 kJ/mol.

Answer 1