Answer:
The volume is 16.7 liters.
Explanation:
STP conditions are:
1 atm as pressure
273 K as temperature (0°C)
So let's get the volume by the Ideal Gas Law, replacing the values.
P . V = n . R . T
1 atm . V = 0.750 moles . 0.082 L.atm /mol.K . 273 K
V = (0.750 moles . 0.082 L.atm /mol.K . 273 K) / 1 atm
V = 16.7 L
Answer: transfer of heat by the actual movement of warmed matter
Explanation: convection is the process of heat transfer through fluids. When molecules absorbs heat they become excited and less dense causing it to rise.
Answer:
CH₂
Explanation:
From the question given above, the following data were obtained:
Mass of Carbon (C) = 5.41 g
Mass of compound = 6.32 g
Empirical formula =?
Next, we shall determine the mass of Hydrogen (H) in the compound. This can be obtained as follow:
Mass of Carbon (C) = 5.41 g
Mass of compound = 6.32 g
Mass of Hydrogen (H) =?
Mass of H = mass of compound – mass of C
Mass of H = 6.32 – 5.41
Mass of H = 0.91 g
Finally, we shall determine the empirical formula of the compound. This can be obtained as follow:
Mass of C = 5.41 g
Mass of H = 0.91 g
Divide by their molar mass
C = 5.41 / 12 = 0.451
H = 0.91 / 1 = 0.91
Divide by the smallest
C = 0.451 / 0.451 = 1
H = 0.91 / 0.451 = 2
Thus, the empirical formula for the compound is CH₂
I googled it and what I found was: "Vaporization is a transitional phase of an element or compound from a solid phase or liquid phase to a gas phase while evaporation is a type of vaporization wherein the transition from a liquid phase to a gas phase takes place below the boiling temperature at a given pressure, and it occurs on the surface."
But my science teacher always told us they were both pretty much the same thing: liquid to gas. There isn't a major difference and if you see one of the words on a test just remember - liquid to gas!