Answer:
C) 712 KJ/mol
Explanation:
- ΔH°r = Σ Eb broken - Σ Eb formed
- 1/2Br2(g) + 3/2F2(g) → BrF3(g)
∴ ΔH°r = - 384 KJ/mol
∴ Br2 Eb = 193 KJ/mol
∴ F2 Eb = 154 KJ/mol
⇒ Σ Eb broken = (1/2)(Br-Br) + (3/2)(F-F)
⇒ Σ Eb broken = (1/2)(193 KJ/mol) + (3/2)(154 KJ/mol) = 327.5 KJ/mol
∴ Eb formed: Br-F
⇒ Σ Eb formed (Br-F) = Σ Eb broken - ΔH°r
⇒ Eb (Br-F) = 327.5 KJ/mol - ( - 384 KJ/mol )
⇒ Eb Br-F = 327.5 KJ/mol + 384 KJ/mol = 711.5 KJ/mol ≅ 712 KJ/mol
This is a physical phase change it is still water it just separated and became less and less.it stays water though
B and/or C because velocity is also know as a vector quantity and speed is a scalar quantity
The gas cylinder only contains pure ammonia and so it is a pure chemical substance and a compound.
What is a compound?
compound refers to a chemical substance that is made up of several similar molecules containing elements from multiple elements. Most noteworthy, the bounding of these molecules takes place by chemical bonds. A chemical formula gives an indication of the number of atoms of each element existing in a compound molecule.
To know more about Compound go to the given link :
brainly.com/question/13184135
