Inactive Tutor answered • 10/12/16
Tutor
New to Wyzant
Because you have equal amounts of both oxygen and nitrogen (1 mole of each) the mixture would be 50% oxygen and 50% nitrogen. Both elements will contribute equally to the temperature also, so then you would just take the average of the temperatures to find the temperature of the solution.
Inactive Tutor
They aren't equal in mass, but they are equal in terms of moles. Both are diatonic elements meaning O2 and N2. A mole of O2 has a mass of 32 g. The problem states the we have 16 grams. This means there is 0.5 moles of oxygen. 1 mole of Nitrogen, N2, has a mass of 28 g. If there 14 grams present then there is 0.5 moles of nitrogen. So the quantities are equal, and the temperatures will average out. I overlooked them being diatonic earlier, however, the quantities, in terms of moles, are still equal.
If you have 50 ml of water at 30 degrees C and 50 ml of water at 40 degrees C, the resulting mixture would have a temperature of 35 degrees. Similar concept.
Report
10/12/16
Prashant K.
So... the temperature of the mixture will be (37+27)/2 = 32C
Report
10/12/16
Inactive Tutor
Yup??????
Report
10/12/16
Inactive Tutor
Apparently Wyzant doesn't do emojis
Report
10/12/16
Prashant K.
Thank you Mr. Brandon
You're such a life saviour :)
Report
10/12/16
Prashant K.
10/12/16