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According to the Following Reaction, How Much Energy Is Evolved

Question 78

Multiple Choice

According to the following reaction, how much energy is evolved during the reaction of 2.50 L B2H6 and 5.65 L Cl2 (both gases are initially at STP) ? The molar mass of B2H6 is 27.67 g According to the following reaction, how much energy is evolved during the reaction of 2.50 L B<sub>2</sub>H<sub>6</sub> and 5.65 L Cl<sub>2 </sub>(both gases are initially at STP) ? The molar mass of B<sub>2</sub>H<sub>6 </sub>is 27.67 g . B<sub>2</sub>H<sub>6</sub>(g) + 6Cl<sub>2</sub>(g) → 2BCl<sub>3</sub>(g) + 6HCl(g) H°<sub> </sub>= -1396 kJ A) 57.8 kJ B) 156 kJ C) 215 kJ D) 352 kJ E) 508 kJ . B2H6(g) + 6Cl2(g) → 2BCl3(g) + 6HCl(g) According to the following reaction, how much energy is evolved during the reaction of 2.50 L B<sub>2</sub>H<sub>6</sub> and 5.65 L Cl<sub>2 </sub>(both gases are initially at STP) ? The molar mass of B<sub>2</sub>H<sub>6 </sub>is 27.67 g . B<sub>2</sub>H<sub>6</sub>(g) + 6Cl<sub>2</sub>(g) → 2BCl<sub>3</sub>(g) + 6HCl(g) H°<sub> </sub>= -1396 kJ A) 57.8 kJ B) 156 kJ C) 215 kJ D) 352 kJ E) 508 kJ H° = -1396 kJ


A) 57.8 kJ
B) 156 kJ
C) 215 kJ
D) 352 kJ
E) 508 kJ

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