Answer:
4.65 g x 1 mol/4.0026 g/mol = 1.162 mol helium
Explanation:
Answer:
Breaker A
Explanation:
Because the temperature is cooler in A then the rest
D. They all have the same number of valence electrons.
Answer is: <span>
The reaction will not be spontaneous at any temperature.
</span>
<span>Gibbs free energy
(G) determines if reaction will proceed spontaneously.
ΔG = ΔH - T·ΔS.
ΔG - changes in Gibbs free energy.
ΔH - changes in enthalpy.
ΔS - changes in entropy.
T is temperature in Kelvins.
When ΔS < 0 (negative entropy change) and ΔH > 0
(endothermic reaction), the process is never spontaneous (ΔG> 0).</span>