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0
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avatar+1904 

It takes 3.2×103 J of heat to melt an amount of gold (ΔHf=6.30×104 Jkg/) . How much gold do you have?

5.1 g

0.051 g

51 g

19 g

 

im stuck between b and c . frown

 Feb 28, 2020

Best Answer 

 #1
avatar+26007 
+3

3.2 x 103 / 6.30 x 104 J / kg    = .051 kg   = 51 g

 Feb 28, 2020
edited by ElectricPavlov  Feb 28, 2020
 #1
avatar+26007 
+3
Best Answer

3.2 x 103 / 6.30 x 104 J / kg    = .051 kg   = 51 g

ElectricPavlov Feb 28, 2020
edited by ElectricPavlov  Feb 28, 2020

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