##### A piece of solid aluminum at 15 degrees Celsius is immersed in 25.8 g of oxygen gas which is initial

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A piece of solid aluminum at 15 degrees Celsius is immersed in 25.8 g of oxygen gas which is initially at 42.2 degrees Celsius and the system is allowed to equilibrate. Given that the specific heat of solid aluminum is 0.908 J/K/g and the specific heat oxygen gas is 0.92 J/K/g, what is the mass of piece of solid aluminum if the final temperature is 28.9 degrees Celsius?

Jul 16th, 2015

Heat taken = heat given

Oxygen will give heat and aluminum will take heat.

m*0.908*(28.9-15) = 25.8*0.92*(42.2-28.9)

Hence, m = 25.8*0.92*(42.2-28.9)/0.908*(28.9-15)

= 25.13 gms

Hence, mass of aluminum piece = 25.13 gms            Ans.

Jul 16th, 2015

typing mistake. m = 25.013gms

Jul 16th, 2015

Thank you so much!!

Jul 16th, 2015

You are most welcome.

Jul 16th, 2015

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Jul 16th, 2015
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Jul 16th, 2015
Sep 25th, 2017
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