TS EAMCET Medical 9 May 2019 Shift 1 Paper

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Question : 131 of 160
 
Marks: +1, -0
Consider the following thermochemical reactions.
1
2
H2(g)
+
1
2
C
l2(g)
HCl(g) - 92.3 kJ
BCl3(g)+3H2O(l)H3BO3(s)+3HCl(g) + 112.5 kJ
B2H6(g)+6H2O(l)2H3BO3(s)+6H2(g) + 493.5 kJ
using the above reactions, find the
approximate ΔrH° for the following reaction in kJ
B2H6(g)+6Cl2(g)2BCl3(g)+6HCl(g)
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