Which question are you confused about?
The answer is C) Temperature
<span>According the the first of thermodynamics, energy is
neither created nor destroyed, energy is simply converted to other forms of
energy. So in this case, heat is also a type of energy so when it flows out of
the system, therefore this means that some of the initial potential energy was
converted to heat and then flowed out of the system. Therefore potential energy
will decrease.</span>
DiHydrogen Phosphate or Phosphoric acid is the compound here
How to identify and name
First identify the two ions
- Here they are PO_4- and H+
Now
Name them
Combine and you are done
The liters in 3.25 g of ammonia 4.28 L
<u><em>calculation</em></u>
Step 1: find moles of ammonia
moles = mass÷ molar mass
From periodic table the molar mass of ammonia (NH₃) = 14 +(1×3 ) = 17 g/mol
3.25 g÷ 17 g/mol = 0.191 moles
Step 2: find the number of liters of ammonia
that is at STP 1 moles = 22.4 L
0.191 moles = ? L
<em>by cross multiplication</em>
={( 0.191 moles ×22.4 L) / 1 mole} = 4.28 L
