The amount of heat required to change the temperature of a material from T1 to T2 is given by Q= mCp(T2-T1). Using this equation, answer the following: a. How many BTU’s of heat are required to cook a beef roast weighing 10 lb from 40 to 130oF?, Cp = 0.8 BTU/lboF b. Convert the number of BTU’s of heat in watt hours. c. If this roast is heated in a microwave oven having an output of 200 watts, how long will it take to cook the roast?

The amount of heat required to change the temperature of a material from T1 to T2 is given by Q= mCp(T2-T1). Using this equation, answer the following: a. How many BTU’s of heat are required to cook a beef roast weighing 10 lb from 40 to 130oF?, Cp = 0.8 BTU/lboF b. Convert the number of BTU’s of heat in watt hours. c. If this roast is heated in a microwave oven having an output of 200 watts, how long will it take to cook the roast?

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter42: Heat Gains And Heat Losses In Structures

Section: Chapter Questions

Problem 11RQ: If a wall is made up of four different materials, all layered one on top of the other, how will the...

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