The free energy, which has a symbol of ΔG° at standard conditions has the formula:
ΔG° = n(ΔH° - TΔS°)
For NaBr:
ΔG° = (1 mol)[(-1 kJ/mol)(1000 J/1 kJ) - (298 K)(57 J/mol·K)]
<em>ΔG° = -17,986 J</em>
For NaI:
ΔG° = (1 mol)[(-7 kJ/mol)(1000 J/1 kJ) - (298 K)(74 J/mol·K)]
<em>ΔG° = -29,052 J</em>
Na more reactive than Cu
<h3>Further explanation</h3>
Given
Copper in a solution of NaCl
Required
The displacement theory
Solution
A single replacement reaction is a chemical reaction in which one element replaces the other elements of a compound to produce new elements and compounds
Not all of these reactions can occur. We can use the activity series, which is a list of elements that can replace other elements below / to the right of them in a single replacement reaction.
The voltaic series:
<em>Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe²⁺-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Fe³⁺-Ag-Pt-Au </em>
The electrode which is easier to reduce than the hydrogen (H2) electrode has a positive sign (E red= +) and is located to the right of the voltaic series (right of H)
The electrode which is easier to oxidize than the hydrogen (H2) electrode and is difficult to experience reduction has a negative sign (E red= -) and is located to the left of the voltaic series (left of H)
Reaction
Cu + NaCl≠
The existing copper element can not replace the sodium element, which is on the left side so the reaction will not occur.
But if it is reversed, then a reaction can occur
2 Na + CuCl2 → Cu + 2 NaCl
Answer:
14
Explanation:
The lithium atom has 3, which is its atomic number. (Atomic number is the number of protons in the nucleus of an atom, which determines the chemical properties of an element and its place in the periodic table.) The chlorine atom has 17, so if you find the difference, it would be 14.
Answer:
Oxidation Reduction
Explanation:
Your welcome ;) Marking me brainliest would make me be very appreciative
