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? asked in Science & MathematicsChemistry · 7 days ago

A 1500.0 gram piece of wood with a specific heat capacity of 1.8 g/JxC absorbs 67,500 Joules of heat.?

If the final temperature of the wood is 57C, what is the initial temperature of the wood? (2 sig figs)  

so i put the picture and the question because people didn't believe me when i said the answer wasn't 82. Thank you guys for trying though.

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1 Answer

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  • Dr W
    Lv 7
    7 days ago

    57°C is the FINAL temp after adding heat.  try again.. 

    .. Q = m Cp dT = m Cp (Tf - Ti)

    .. Ti = Tf - Q/(m Cp)

    .. Ti = 57°C - 67500J / (1500.0g * 1.8 J/g°C) = what?

    thumbs down eh?  hmm.. 

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