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Chemistry Question
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A 105 g piece of copper wire is heated and the temperature of the wire changes from 25*C to 91*C. The amount of heat absorbed is 645 cal. What is the specific heat of copper? Show all work, including the equation, and include units.
Answers
Best Answer
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For more on marking an answer as the "Best Answer", please visit our FAQ.All that is needed is to substitute your values into the formula and then rearrange to fins M from your Q, M and change in T
http:// www.sof tschool s.com/f ormulas /physic s/speci fic_hea t_formu la/61/Y ou are more likely to get answers if you show you have at least made some effort
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your are clearly doing a course
and you are on the chapter on specific heats
read it !
thre will be a worked example
here you need to track down on the equation we used ;
it is still there
mstheta - yup em - es - theta
and this is the quantity of heat whcih people say is Q
you have the em - 105
you have the theta 91-25
you have the q 645
there is only one unknown when you plug it in ( s)
specific heat
I have not done units - it looks as tho the question is in CGS and you need to convert to modern units MKS - but you are going to have to do this yourself
yes I last did this in 1965 ( CGS units)
and you are on the chapter on specific heats
read it !
thre will be a worked example
here you need to track down on the equation we used ;
it is still there
mstheta - yup em - es - theta
and this is the quantity of heat whcih people say is Q
you have the em - 105
you have the theta 91-25
you have the q 645
there is only one unknown when you plug it in ( s)
specific heat
I have not done units - it looks as tho the question is in CGS and you need to convert to modern units MKS - but you are going to have to do this yourself
yes I last did this in 1965 ( CGS units)