I have tried the answer 3.9149 and 3.914, it is incorrect
1 answer:
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Answer: at relatively low temperatures.
Explanation:
According to Gibbs equation;
= Gibb's free energy change
= enthalpy change
T = temperature
= entropy change
A reaction is spontaneous when = Gibb's free energy change is negative.
Thus
Thus the reaction is spontaneous or is negative only when
Thus the reaction is spontaneous at relatively low temperatures
Answer:
Option E)
Explanation:
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<u>1. Write the solubility equation:</u>
- CaCO₃(s) ⇄ Ca²⁺(aq) + CO₃²⁻
<u>2. Write the concentrations below the equation:</u>
- CaCO₃(s) ⇄ Ca²⁺(aq) + CO₃²⁻
A - s s s
<u>3. Write the Ksp equation:</u>
- Ksp = [Ca²⁺] . [CO₃²⁻] ↔ the solid substances do not appear
- Ksp = s × s
- 4.5 × 10⁻⁹ = s²
<u>4. Solve the equation:</u>
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