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Thermochemistry I: heat, specific heat, and calorimetry — Homework

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Thermochemistry I: heat, specific heat, and calorimetry — Homework

Show deltaT (final minus initial) and the full q = mcT setup for every problem.

  1. 1.How much heat is needed to raise 20.0 g of water from 10.0 to 30.0 degrees C? (c water = 4.184 J/(g x degrees C).)
  2. 2.How much heat is released when 40.0 g of water cools from 90.0 to 40.0 degrees C?
  3. 3.A 50.0 g sample of aluminum (c = 0.900 J/(g x degrees C)) is heated from 20.0 to 70.0 degrees C. Find the heat absorbed.
  4. 4.Why does a metal spoon left in a hot cup of soup become too hot to touch almost immediately, while the soup itself stays hot for a long time?
🌲 Homeschool of the FutureTenth Grade · Science · week 33 homework