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Author Question: Which of the following statements is/are true?I. q (heat) is a state function because H is a state ... (Read 54 times)

imanialler

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on: Mar 21, 2021
Which of the following statements is/are true?
I. q (heat) is a state function because ΔH is a state function and q = ΔH.
II. When 50.0 g of aluminum at 20.0°C is placed in 50.0 mL of water at 30.0°C, the H2O will undergo a smaller temperature change than the aluminum. (The density of H2O = 1.0 g/mL, specific heat capacity of H2O = 4.18 J/g°C, specific heat capacity of aluminum = 0.89 J/g°C)
III. When a gas is compressed, the work is negative since the surroundings are doing work on the system and energy flows out of the system.
IV. For the reaction (at constant pressure) 2N2(g) + 5O2(g) → 2N2O5(g), the change in enthalpy is the same whether the reaction takes place in one step or in a series of steps.
 

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◦ I, II, IV
◦ II, III
◦ II, III, IV
◦ II, IV
◦ All of these statements are true.
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by imanialler on Mar 21, 2021

janeli1

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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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imanialler

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Reply 2 on: Mar 21, 2021
Thanks for the timely response, appreciate it

laurnthompson

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Reply 3 on: Yesterday
Gracias!

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