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Author Question: Use Hess's law to calculate rG using the following information:CO(g) C(s) + 1/2 O2(g) rG = ?CO2(g) ... (Read 89 times)

WhattoUnderstand

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Question 1

Calculate ΔrG° at 298 K using the following information:

2HNO3(aq) + NO(g) → 3NO2(g) + H2O(l)ΔrG° = ?
ΔfG° (kJ mol-1)-110.987.651.3-237.1

◦ +51.0 kJ mol-1
◦ -54.5 kJ mol-1
◦ +171.1 kJ mol-1
◦ -87.6 kJ mol-1
◦ -162.5 kJ mol-1

Question 2

Use Hess's law to calculate ΔrG° using the following information:

CO(g) → C(s) + 1/2 O2(g) ΔrG° = ?
CO2(g) → C(s) + O2(g)ΔrG° = +394.4 kJ mol-1
CO(g) + 1/2 O2(g) → CO2(g)ΔrG° = -257.2 kJ mol-1

◦ +523.0 kJ mol-1
◦ -60.0 kJ mol-1
◦ +651.6 kJ mol-1
◦ +137.2 kJ mol-1
◦ -265.8 kJ mol-1


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Marked as best answer by WhattoUnderstand on Nov 18, 2019

yuyiding

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WhattoUnderstand

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Reply 2 on: Nov 18, 2019
:D TYSM


bimper21

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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