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Author Question: Calculate the enthalpy change for the following reaction at 25 C. The value of fH in kJ/mol is given ... (Read 52 times)

joe

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on: Jul 8, 2021

Question 1

Calculate the amount of heat absorbed by a 40.0 g sample of water at 21 °C when the temperature is raised to 35 °C.
◦ 5.9 kJ
◦ -0.56 kJ
◦ 0.56 kJ
◦ -2.3 kJ
◦ 2.3 kJ

Question 2

Calculate the enthalpy change for the following reaction at 25 °C. The value of ΔfH° in kJ/mol is given below each species:

2 Fe2O3(s) + 6 CO(g) → 4 Fe(s) + 6 CO2(g)
-824.2 -110.5  0  -393.5

◦ -49.6 kJ/mol
◦ 541 kJ/mol
◦ -1380 kJ/mol
◦ -3350 kJ/mol
◦ -24.8 kJ/mol
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by joe on Jul 8, 2021

xiazhe

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Reply #1 on: Jul 8, 2021
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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joe

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Reply 2 on: Jul 8, 2021
YES! Correct, THANKS for helping me on my review

tanna.moeller

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Reply 3 on: Yesterday
Gracias!

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