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anabellabenzaquen
03.09.2019 •
Chemistry
When a 0.740-g sample of trinitrotoluene (tnt), c7h5n2o6, is burned in a bomb calorimeter, the temperature increases from 23.4 to 26.9 c the heat capacity of t he calorimeter is 534 j/c, and it contains 675 ml of water. how much heat was produced by the combusttion of the tnt sample?
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Ответ:
Explanation:
The given data is as follows.
mass of sample (X) = 0.740 g,
=
As, Density =![\frac{mass}{volume}](/tpl/images/0221/5643/cfd74.png)
1.00 g/ml =![\frac{mass}{675 ml}](/tpl/images/0221/5643/64a6e.png)
mass = 675 g
Hence, weight of water = 675 g and heat capacity is given as 534![J/ ^{o}C](/tpl/images/0221/5643/3bf59.png)
Heat produced by combustion of TNT = Heat gained by the water
Heat =![\frac{W \times C \times \Delta T}{X}](/tpl/images/0221/5643/49d2f.png)
=![\frac{675 g \times 534 J/C \times (26.6 - 23.4)^{o}C}{0.740 g}](/tpl/images/0221/5643/49fba.png)
= 1704831 J
As 1 kJ = 1000 J. So, 1704831 J = 1704.831 kJ
Thus, we can conclude that heat produced by the combustion of the TNT sample is 1704.831 kJ.
Ответ:
uh time c
Explanation: