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anonymous
 one year ago
It takes 2.52 × 10^5 J of heat to melt 4.00 kg of a substance. According to the table (attached inside!), what is the substance?
copper, iron, silver, or gold
**not sure! thank you:)
anonymous
 one year ago
It takes 2.52 × 10^5 J of heat to melt 4.00 kg of a substance. According to the table (attached inside!), what is the substance? copper, iron, silver, or gold **not sure! thank you:)

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Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1we have to find the heat capacity

souvik
 one year ago
Best ResponseYou've already chosen the best response.1well...find the amount of heat needed to melt 1 kg of substance

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1so we have to compute this: \[\Large C = \frac{Q}{m}\]

Michele_Laino
 one year ago
Best ResponseYou've already chosen the best response.1where Q=2.52 × 10^5 J and m= 4Kg

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay! so 2.52 * 10^5 / 4 = 63000 ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so that means 6.3 * 10^4? so our substance is gold?
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