Evaluate \[\Delta U\] at 500 K for the process \[Mg(s)+2HCl(g)\to MgC{{l}_{2}}(s)+{{H}_{2}}(g)\Delta H=-109\]kcal The volume change of solids to be ignored

Evaluate \[\Delta U\] at 500 K for the process \[Mg(s)+2HCl(g)\to MgC

1.	Evaluate \[\Delta U\] at 500 K for the process \[Mg(s)+2HCl(g)\to MgC{{l}_{2}}(s)+{{H}_{2}}(g)\Delta H=-109\]kcal The volume change of solids to be ignored
A.	-204 kcal
B.	-108 kcal
C.	-9 kcal
D.	+9 kcal
Answer» C. -9 kcal

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Evaluate \[\Delta U\] at 500 K for the process \[Mg(s)+2HCl(g)\to MgC{{l}_{2}}(s)+{{H}_{2}}(g)\Delta H=-109\]kcal The volume change of solids to be ignored

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