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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 .

jjennylove Feb 28, 2020

+36916

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Best Answer

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

edited by ElectricPavlov Feb 28, 2020

ElectricPavlov · Answer 1 · 2020-02-28T12:12:50

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