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Author Question: If a student performs an endothermic reaction in a calorimeter, how does the calculated value of H ... (Read 82 times)

audragclark

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on: Mar 21, 2021

Question 1

If 5.0 kJ of energy is added to a 15.5-g sample of water at 10.°C, the water is:

◦ boiling.
◦ completely vaporized.
◦ frozen solid.
◦ decomposed.
◦ still a liquid.

Question 2

If a student performs an endothermic reaction in a calorimeter, how does the calculated value of ΔH differ from the actual value if the heat exchanged with the calorimeter is not taken into account?

◦ ΔHcalc would be more negative because the calorimeter always absorbs heat from the reaction.
◦ ΔHcalc would be less negative because the calorimeter would absorb heat from the reaction.
◦ ΔHcalc would be more positive because the reaction absorbs heat from the calorimeter.
◦ ΔHcalc would be less positive because the reaction absorbs heat from the calorimeter.
◦ ΔHcalc would equal the actual value because the calorimeter does not absorb heat.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by audragclark on Mar 21, 2021

Jayson

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Reply #1 on: Mar 21, 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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audragclark

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Reply 2 on: Mar 21, 2021
:D TYSM

alvinum

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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