Gold melts at 1064 °C (don\'t touch solid gold unless you\'re sure it\'s nice an

Question

Gold melts at 1064 °C (don't touch solid gold unless you're sure it's nice and cool). It has a heat capacity of O.13 J/g.K. In "Raiders of the Lost Ark", Anthony Higgins grabs a gold medal out of a fire and it burns his hand. Harrison Ford picks it up with a stick and a rag and throws it in a glass of water to cool it down. Now most fires burn at about 450 degrees Celsius, and the glass probably contained 200 mL of water. If the density of water is 0.997 g/mL, and dropping the medallion in the water raised the temperature f what is the mass of the medallion? om 23.0 °C to 27,6 °C

Explanation / Answer

heat lost by gold = heat gained by water

mgold*sgold*DT = mwater*swater*DT

x* 0.13*(450-27.6) = 200*0.997*4.18*(27.6-23)

mass of gold medallion = 69.82 g

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