250 200
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Attempt due: Oct 10 at 11:59pm
12 Minutes, 9 Seconds
A
150
Temperature (Celsius)
100
B
D
50
SE
0
0
20
40
120
140
160
60 80 100
Time (min)
ry
The diagram above is the cooling curve of a certain chemical X
(molar mass=50 g/mol) with a mass of 100 grams. Based on the
data below, how much heat, in kJ, is released by this substance
during stage E?
]
ledia
(one decimal places for your answer)
otices
?
Help
specific heat of X(g): 0.89 J/g °C
specific heat of X(1): 1.4 J/g °C
specific heat of X(s): 2.6 J/g °C
enthalpy of melting: 4.6 kJ/mol
enthalpy of boiling: 24 kJ/mol