Question

) URGENT TOMORROW MY EXAM PLEASE HELP
A jeweller wishes to harden a sample of pure gold by mixing it with some silver so that
the mixture contains 5.0% silver by weight. The jeweller melts some pure gold and then
adds the correct weight of silver. The initial temperature of the silver is 27 °C. Use the
data of Fig. 2.2 to calculate the initial temperature of the pure gold so that the final
mixture is at the melting point of pure gold.

Answer 1

Given :
Melting point of gold 1340 K
Melting point of Silver 1240 K
Specific heat capacity of gold ( solid or liquid) : 129 J/kgK
Specific heat capacity of silver ( solid or liquid) : 235 J/kg

Answer 2

@ganeshie8

Answer 3

@Vincent-Lyon.Fr