3. If a 3.1 g ring is heated using 10.0 J, it’s temp. rises by 17.9C. Calculate the specific heat capacity of the ring. Is the ring pure gold?. (specific heat for pure gold = 0.23 J/(gC).

1 Answer
Junaid Mirza
May 29, 2018

#"0.18 J/g°C"# and no it’s not pure gold.

Explanation:

Specific heat capacity is given by

#"S" = "Q"/"mΔT"#

#"S" = "10.0 J"/"3.1 g × 17.9°C" = "0.18 J/g°C"#

Specific heat capacity of ring (#"0.18 J/g°C"#) is different from pure gold (#"0.23 J/g°C"#). Therefore ring is not pure gold.

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