Answer:
hot air rises because gases expand as they heat up.When air heats up and expands,its density also increases.The warmer,less dense air effectively floats on top of the colder, dense air below it. This creates a buoyant force that causes warmer air to rise.
cold air sinks because it is heavier as its more dense ( because of closely packed molecules) soits harder for them to move and they absorb less energy. Also, gravity pulls on it more strongly.
Hope it helps :)
Answer:
The molar concentration of radon is 4.38 x 10⁻⁶ mol.L⁻¹
Explanation:
Molar fraction = number of moles of a certain component / total number of moles
Partial pressure = Total pressure x molar fraction
Partial pressure = 34 atm x 3.2 x 10⁻⁶
Partial pressure = 1.09 x 10⁻⁴ atm
Considering radon as an ideal gas, PV = nRT
molar concentration = n/V
n/V = P/RT
n/V = 1.09 x 10⁻⁴ atm / 0.082 L.atm.mol⁻¹K⁻¹ x 303.15K
n/V = 4.38 x 10⁻⁶ mol.L⁻¹
The answer is b_______________\\\
(2C+2-H-X+N)/2
(2*6+2-12-0+0)/2
1 UNSATURATION
Answer:
Throughout the description box below, the overview including its query is listed.
Explanation:
- Hypothesis: unless the food is colored, then it would be picked by the youngsters or kids.
- Independent Variable: The Hue Variable or color.
- Dependent variable: The proportion of children selecting the potatoes selected.
- Controlled variables: The community of plans.
- Control procedure or treatment: The color selection community.