Explanation:
Equation of the reaction:
Br2(l) + Cl2(g) --> 2BrCl(g)
The enthalpy change for this reaction will be equal to twice the standard enthalpy change of formation for bromine monochloride, BrCl.
The standard enthalpy change of formation for a compound,
ΔH°f, is the change in enthalpy when one mole of that compound is formed from its constituent elements in their standard state at a pressure of 1 atm.
This means that the standard enthalpy change of formation will correspond to the change in enthalpy associated with this reaction
1/2Br2(g) + 1/2Cl2(g) → BrCl(g)
Here, ΔH°rxn = ΔH°f
This means that the enthalpy change for this reaction will be twice the value of ΔH°f = 2 moles BrCl
Using Hess' law,
ΔH°f = total energy of reactant - total energy of product
= (1/2 * (+112) + 1/2 * (+121)) - 14.7
= 101.8 kJ/mol
ΔH°rxn = 101.8 kJ/mol.
Explanation:
I hope this one is useful, I will complete later
Answer:
100 torr
Explanation:
First find the formula you need to use, this will be...
P2 = V1 x P1 / V2
Next, fill in the numbers, this will be...
P2 = ? (we are trying to find this)
P1 = 760 torr
V1 = 1.5 L
V2 = 11.4 L
Next, turn into new formula (just rearrange)
P2 = 1.5 L x 760 torr / 11.4 L
Next, do the math. This should get you...
<u>100 torr</u> as your answer
- Let me know if you need more help understanding. I would be glad to further explain or do more problems.
Answer:
Explanation:
Reflection of trees in clear water and reflection of mountains in a lake. Wings of most butterflies are identical on the left and right sides. Some human faces are the same on the left and right side. People can also have a symmetrical mustache.
Atoms bond to form molecules: Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds, a water molecule is formed.
