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Author Question: Calculate the amount of heat in BTUs required to change the temperature of 10 pounds of copper from ... (Read 53 times)

maegan_martin

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on: Jul 26, 2018
Calculate the amount of heat in BTUs required to change the temperature of 10 pounds of copper from 100F to 150F. The specific heat of copper is 0.09 BTUs/lb.
 
  A) 10 lbs  50F = 500 BTUs
  B) 10 lbs  0.09 BTUs/lb = 0.9 BTUs
  C) 10 lbs  50F  0.09 BTUs/lb = 45 BTUs
  D) The amount of heat required cannot be calculated using the information given.

Question 2

How many steps are required to calculate the heat necessary to change 10 lbs of ice at -20F to steam at 250F?
 
  A) One B) Five C) Two D) Three


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zogaridan

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Reply #1 on: Jul 26, 2018
Answer to Question 1

C

Answer to Question 2

B


maegan_martin

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Reply 2 on: Jul 26, 2018
Gracias!

zacnyjessica

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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