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 one year ago
In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL of coffee by 1.0∘C, then it should take twice as much energy to raise the temperature of 2.0 mL of coffee by 1.0∘C, or to raise the temperature of 1.0 mL of coffee by 2.0∘C. Multiply carefully to find the total amount of energy needed to raise the temperature of 200 mL of coffee by the required number of degrees.
 one year ago
In Part A, you determined that the heat added to the coffee is what you got. If it takes 4.2 J of energy to raise the temperature of 1.0 mL of coffee by 1.0∘C, then it should take twice as much energy to raise the temperature of 2.0 mL of coffee by 1.0∘C, or to raise the temperature of 1.0 mL of coffee by 2.0∘C. Multiply carefully to find the total amount of energy needed to raise the temperature of 200 mL of coffee by the required number of degrees.

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IsTim
 one year ago
Best ResponseYou've already chosen the best response.0The answer is 2.52×10^4 J

wolfe8
 one year ago
Best ResponseYou've already chosen the best response.0Oh this again. Hmm what I understand is, you need 4.2/1 J/ml per degree. So I guess you multiply that by what volume and degree you want?

IsTim
 one year ago
Best ResponseYou've already chosen the best response.0Yeah, I and another person got this answer for this question, but it was apparently wrong.

IsTim
 one year ago
Best ResponseYou've already chosen the best response.0The result you say would be 840J right?

wolfe8
 one year ago
Best ResponseYou've already chosen the best response.0Yes. Does it say what degrees you want?

IsTim
 one year ago
Best ResponseYou've already chosen the best response.0it wants 3 sig figs, but no degrees.
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