Answer: The sun heats earth’s oceans causing convection currents to travel from the equator to the poles
Explanation: found it on a quizz thingy :D
Answer:
V = 0.104 m³
Explanation:
Given that,
Number of moles, n = 7.70 moles
Pressure, P = 202.6 kPa
Temperature, T = 59.0°C = 332 K
We need to find the volume of the container that the gas. We know that the ideal gas law is as follows :
, R =8.314 m³-Pa/K-mol
Put all the values,

So, the volume of the container is equal to 0.104 m³.
Answer: The chemical formula of the gas is Xenon.
Explanation:
From Graham's law of effusion rates, the rate of effusion of a gas is inversely proportional to the square root of its molar mass.
Given: Rate of unknown gas =
Putting the values in the formula:

Squaring both sides:


As Xenon (Xe) has molar mass of 131g/mol, Thus the chemical formula of the gas is Xenon.
When looking down the groups the elements have an equal number of electrons in the outer shell. This means they react in a similar way making it easier for scientists to use.