550 g of water (cw = 4186 J/kg.K) at 75°C is poured into an 855 g aluminum (cw =900 J/kg.K) container with an initial temperature of 11°C. What is the final temperature of the system, assuming no heat is exchanged with the surroundings?
2 answers
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heat lost by water + heat gained by Al = 0
[mass H2O x specific heat H2O x (Tfinal - Tinitial)] + [mass Al x specific heat Al x (Final-Tinitial)] = 0
Substitute and solve for Tf.
[mass H2O x specific heat H2O x (Tfinal - Tinitial)] + [mass Al x specific heat Al x (Final-Tinitial)] = 0
Substitute and solve for Tf.