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Elementary,Middle School,High School,College,University,PHD
Teaching Since: | Apr 2017 |
Last Sign in: | 233 Weeks Ago, 3 Days Ago |
Questions Answered: | 12843 |
Tutorials Posted: | 12834 |
MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
Name: 1. Date: A 550.00 gram iron block absorbs heat to raise its temperature from 20.0 degrees Celsius to 195.0
degrees Celsius. Using the table above, find the amount of heat energy in Joules that was required. Show
your work. Answer: 2. A 0.600 kg unknown substance absorbs 5.260 x 104J of heat to raise its temperature by 100 degrees C.
What is the specific heat of this substance? Show your work.
Identify it using the table above. Explain your answer. Answer: 3. You have a 1.55 kg block of silver at room temperature of 20 °C. Silver melts at 962°C. How much heat
energy would be needed to just melt the silver? (H f (silver) = 111 kJ/kg). Show all work. Answer:
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