Warm air is lighter than cold air so hot air will rise as cold air sinks
Answer: The corresponding value of 
for this reaction at 84.5°C is 0.00232
Explanation:
Relation of with is given by the formula:
where,
= equilibrium constant in terms of partial pressure = ?
= equilibrium constant in terms of concentration = 0.0680
R = Gas constant = 
T = temperature =
= change in number of moles of gas particles = 
Putting values in above equation, we get:
Thus the corresponding value of for this reaction at 84.5°C is 0.00232
<span>Density
is a value for mass, such as kg, divided by a value for volume, such as m3.
Density is a physical property of a substance that represents the mass of that
substance per unit volume. We calculate as follows:
Density = mass of gasoline/ volume of gasoline = (1</span>46.770 g -110.525 g ) / <span>50 ml = 0.7249 g/mL</span>
The answer to the question is- Fe2O3
