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toxicsugar22
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Calculate the amount of heat required to raise the temperature of a 39g sample of water from 5∘C to 20∘C.
 11 months ago
 11 months ago
toxicsugar22 Group Title
Calculate the amount of heat required to raise the temperature of a 39g sample of water from 5∘C to 20∘C.
 11 months ago
 11 months ago

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Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
Q= mc (T2  T1)
 11 months ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
Just Subs ....
 11 months ago

Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
i have to go...byee
 11 months ago

olzha.y Group TitleBest ResponseYou've already chosen the best response.0
you wrote from 5 to 20 so (205) = difference in temperature..delta T Q = mC(T2T1) here C is "specific heat capacity of water" = 4.18J/(C*g) Q = 39*4.18*15 ~ 2500J or 2.5 kJ (look carefully, I may made a mistake, but I'm pretty sure)
 11 months ago

olzha.y Group TitleBest ResponseYou've already chosen the best response.0
to convert from celsius to fahrenheit use this formula: C * (9/5) + 32 = F
 11 months ago

toxicsugar22 Group TitleBest ResponseYou've already chosen the best response.0
An adult eats food whose nutritional energy totals approximately 2200 Cal per day. The adult burns 2000 Cal per day. If 1 lb of fat is stored by the body for each 14.6×10^3kJ of excess nutritional energy consumed, how long will it take this person to gain 1 lb?
 11 months ago
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