(a) Diborane (B2H6) is a highly reactive borohydride that can be used as rocket fuel. Calculate Δ? for synthesis from th...
(a) Diborane (B2H6) is a highly reactive borohydride that can be used as rocket fuel. Calculate Δ? for synthesis from the elements as:
2B (s) + 3H2 (g) → B2H6 (g)
Use the following data:
4B (s) + 3O2 (g) → 2B2O. (S) Δ? = -2546 kJ mol-1
B2H6 (g) + 3O2 (g) → B2O3 (s) + 3H2O (g) Δ? = -2035 kJ mol-1
2H2 (g) + O2 (g) → 2H2O (l) Δ? = -572 kJ mol-1
H2O (l) → H2O (g) Δ? = 44 kJ mol-1
(b) Does the reaction increase or decrease entropy? Motivate your answer.
Homework Answers
Answer:-
This question is solved by using the simple concept of Hess law of constant heat transfer and using the definition of entropy.
The answer is given in the image,
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(a) Diborane (B2H6) is a highly reactive borohydride that can be used as rocket fuel. Calculate Δ? for synthesis from th...
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