anonymous
  • anonymous
A 0.80 kg block of a substance requires 2.08 kJ of heat to raise its temperature 20 K. Use the table to identify the substance. (attached inside!) Iron, aluminum, gold, or copper? **not sure which it would be? :/ thank you!!
Physics
katieb
  • katieb
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anonymous
  • anonymous
Michele_Laino
  • Michele_Laino
here we have to compute the specific heat, first, so we have to apply this formula: \[\Large c = \frac{Q}{{m\Delta T}}\]
anonymous
  • anonymous
okay!! how can we plug in? :/

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Michele_Laino
  • Michele_Laino
\[\Large c = \frac{Q}{{m\Delta T}} = \frac{{2080}}{{0.80 \times 20}} = ...\frac{{Joules}}{{Kg \times Kelvin}}\]
anonymous
  • anonymous
ohh okay! so we get 130? and that is the same as gold? so our answer is gold? :O
Michele_Laino
  • Michele_Laino
yes!
anonymous
  • anonymous
yay! thank you:D
Michele_Laino
  • Michele_Laino
thank you!! :D

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