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anonymous
 one year ago
How much heat (kJ) is needed to raise the temperature of 100.0 grams of water from 25.0ºC to 50.0ºC?
anonymous
 one year ago
How much heat (kJ) is needed to raise the temperature of 100.0 grams of water from 25.0ºC to 50.0ºC?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I already worked the problem, however I seem to be a little confused with what the answer should be. I'll show you the steps.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0q= m * c * delta(T) q= 100 * 4.18 j/g º C * 50ºC  25ºC q=10450

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0q=mct Where q is heat transferred m is the gram of substance c is the specific heat capacity. For water is it 4.18J/g*K t is temperature in Kelvin. Formula for Kelvin is K=C+273.15

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0My answer choices are this A) 10450 B) 0.598 C) 1.05 D) 10.5 E) none of the above

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0T is temperature difference between the 2 Kelvins temperature

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yep, you did it correctly!

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0My issue is I'm not sure if i have to leave the answer as 10450 or do i have to make it according to the sig figs?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0for example the lowest sigfig is 3 so would i leave it as 10450 or 105?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It would be 1.05 x 10^4 J You need to use scientific notation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That makes it 3 sf also.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Is it require for every answer to use scientific notation?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No, only if lowest sf is lower than the whole number's sf Like lowest sf is 4 and answer is 102345.23 or 102345 It would be 1.023 x 10^5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay so in my case i got the answer 10450. I need to get it to 3 sf because its the lowest in the problem. I would make it 1.045 but round it to 1.05 making it 1.05 x 10^4?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0To make it 3 sf, you round out the 5 to make it gone.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Right. So my choices are these A) 10450 B) 0.598 C) 1.05 D) 10.5 E) none of the above

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0would the answer be C?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0However there isn't a "x 10^4" or does it make it e?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You need the scientific notation. So what do you think the answer is now?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.01.05 does not equal 10450 or 10500 but 1.05 x10^4 does.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes, it would be because the answers are not in correct sf.
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