The triple point temperature of bismuth is 544.5 K and the normal boiling point is 1832 K. Imagine that a 1.00 mol sample of bismuth is heated at a constant rate of 1.00 kJ min-1 in an apparatus in which the sample is maintained under a constant pressure of 1 atm. In the manner shown in Figure 12-24 and as much to scale as possible, that is in terms of times and temperatures, sketch the heating curve that would be obtained in heating the sample from 300 K to 2000 K. Use the following data. Δ a q H = 10.9 kJ mol-1 for Bi(s); Δ a q H = 151.5 kJ mol-1 for Bi(l); average molar heat capacities, in J mol-1 K-1, 28 for Bi(s), 31 for Bi(l), and 21 for Bi(g). [ Hint: Under the conditions described, no vapor appears until the normal boiling point is reached.]
The triple point temperature of bismuth is 544.5 K and the normal boiling point is 1832 K. Imagine that a 1.00 mol sample of bismuth is heated at a constant rate of 1.00 kJ min-1 in an apparatus in which the sample is maintained under a constant pressure of 1 atm. In the manner shown in Figure 12-24 and as much to scale as possible, that is in terms of times and temperatures, sketch the heating curve that would be obtained in heating the sample from 300 K to 2000 K. Use the following data. Δ a q H = 10.9 kJ mol-1 for Bi(s); Δ a q H = 151.5 kJ mol-1 for Bi(l); average molar heat capacities, in J mol-1 K-1, 28 for Bi(s), 31 for Bi(l), and 21 for Bi(g). [ Hint: Under the conditions described, no vapor appears until the normal boiling point is reached.]
Solution Summary: The author illustrates the heating curve obtained from heating the bismuth sample from 300 K to 2000 K.
The triple point temperature of bismuth is 544.5 K and the normal boiling point is 1832 K. Imagine that a 1.00 mol sample of bismuth is heated at a constant rate of 1.00 kJ min-1 in an apparatus in which the sample is maintained under a constant pressure of 1 atm. In the manner shown in Figure 12-24 and as much to scale as possible, that is in terms of times and temperatures, sketch the heating curve that would be obtained in heating the sample from 300 K to 2000 K. Use the following data.
Δ
a
q
H
=
10.9
kJ mol-1 for Bi(s);
Δ
a
q
H
=
151.5
kJ mol-1 for Bi(l); average molar heat capacities, in J mol-1 K-1, 28 for Bi(s), 31 for Bi(l), and 21 for Bi(g). [Hint: Under the conditions described, no vapor appears until the normal boiling point is reached.]
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