Video solusi : Untuk reaksi berikut:
HNO_(2)(l)+NaCl(s) longright-> HCl(g)+NaNO_(2)(s)
Hitunglah nilai segitiga H untuk reaksi di atas berdasarkan informasi berikut:
RH, IRU Reaksi
NO(g)+NO_(2)(g)+Na_(2) O(s) longright-> 2 NaNO_(2)(s) -427,0
NO(g)+NO_(2)(g) longright-> N_(2) O(g)+O_(2)(g) -43,0
2 NaCl(s)+H_(2) O(l) longright-> 2 HCl_(()(g)+Na_(2) O(s) 507,0
2 HNO_(2)(l) longright-> N_(2) O(g)+O_(2)(g)+H_(2) O(l)
A. 157 ~kJ
D. -157 ~kJ
B. 78,5 ~kJ
E. -257 ~kJ
C. -78,5 ~kJ