3. H2 (g) has a standard gibbs free energy of 0
I believe the answer is the poles of the magnet.
Answer:
74 litre
Explanation:
using ideal gas eqation PV=nRT
here P(pressure)=81.8 kPa =81.8×10^3 Pa
moles=2.5
temperature=273.15+18=291.15K
Gas constant R=8.314m^3-Pa/K-mol
now, V=nRT/P = 8.314×2.5×291.5/81.8×10^3 ≈74litre
✌️;)
The answer is 4.69 x 10⁻¹⁹ I hope this helped!
