If 99 J of heat is added to a pure gold coin with a mass of 19 g . what is the temperature change? The specific heat capacity of gold is 0.128 J/g°C.

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm