Answer:
d
Explanation:
Firstly, we need to see the theoretical mole ratio between nitrogen and ammonia from the balanced chemical equation. This is 1 to 2. One mole of nitrogen yielded two moles of ammonia.
At STP, one mole of a gas occupies a volume of 22.4, hence we need to know the volume occupied by a volume of 44.8L of ammonia. This is equal to 44.8/2 = 2 moles
Now we have seen the actual number of moles of ammonia yielded. Since this is the same as the theoretical, it means that only one mole of nitrogen was also used up.
Since it is one mole, the volume at STP is thus 22.4L
Answer:
d. calorimeter
Explanation:
Calorimeter -
It is the instrument use for the measurement of the heat that is absorbed or released during a physical change or in chemical change .
The instrument or devise is used for the study thermodynamics , biochemistry and chemistry .
Hence , From the question information , the instrument which can be used is a Calorimeter .
Explanation:
it contains 6.02*1023atoms
Answer:
Option C. Will always.
Explanation:
A spontaneous reaction is a reaction that occurs without an external supply of heat.
This implies that spontaneous reaction will always occur as no external supply of heat is needed.
Normally during the daylight hours
