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Author Question: A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g mol-1) was combusted in a bomb ... (Read 138 times)

lindiwe

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on: Nov 18, 2019

Question 1

Calculate the change in internal energy (ΔU) for a system that is absorbing 35.8 kJ of heat and is expanding from 8.00 to 24.0 L in volume at 1.00 bar. (Remember that 100 J = 1 L bar)
◦ -29.3 kJ
◦ +51.8 kJ
◦ -15.8 kJ
◦ +34.2 kJ
◦ -16.6 kJ

Question 2

A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g mol-1) was combusted in a bomb calorimeter. If the temperature rose by 32.9 °C, use the information below to determine the heat capacity of the calorimeter.

4C6H5NH2(l) + 35O2(g) → 24CO2(g) + 14H2O(g) + 4NO2(g)

DrU= -3.20 × 103 kJ mol-1

◦ 38.9 kJ °C-1
◦ 12.8 kJ °C-1
◦ 5.94 kJ °C-1
◦ 6.84 kJ °C-1
◦ 97.3 kJ °C-1
Chemistry: A Molecular Approach (Canadian) ¦ Tro, Fridgen, Shaw ¦ 2nd Edition
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Marked as best answer by lindiwe on Nov 18, 2019

Amiracle

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Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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lindiwe

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Reply 2 on: Nov 18, 2019
Great answer, keep it coming :)

patma1981

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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