Answer:

Explanation:
Hello!
In this case, since the undergoing chemical reaction is:

We first need to identify the limiting reactant given the masses of nitrogen and hydrogen:

It means that only 0.647 moles of ammonia are yielded, so the resulting enthalpy change is:

Best regards!
Convection currents are caused by the movement of the magma in the mantle.
Hope This Helps You!
Good Luck Studying :)
The Tyndall effect is used to identify a mixture as a colloid.
S phase, or synthesis, is the phase of the cell cycle when DNA packaged into chromosomes is replaced. This event is an essential aspect of the cell cycle because replication allows for each cell created by cell division to have the same genetic make-up