The phase change H₂(g) → H₂(s) is called deposition, and the enthalpy change, ΔH, for this phase change has a negative (-) sign.
Deposition<span> is a </span>thermodynamic process<span> in which </span>gas<span> transforms into </span>solid<span> without passing through the </span>liquid phase<span>. Example is formin snow in clouds directly from water vapor. In deposition energy is released.</span>
Answer:
0.45 moles
Explanation:
1 mole of gas at s.t.p gives 22.4dm3 when converted to litre it will be 22.4l/ x mole of N2 will give 10.0l the answer is equal to 0.45mole
The answer to this question is ZN2I
Answer:
C) Smallpox and Cowpox are similar.
Explanation:
Scientists used Cowpox vaccinations to test how well a smallpox vaccination work, using the Cowpox vaccine as a benchmark to base smallpox off of.