Answer:
PM = 2,254 g / mol
Explanation:
We must assume that the gas behaves like an ideal gas, in this case we can use the state equation
PV = n RT
Where P is the pressure, V is the volume, n is the number of moles, R the gas constant worth 8,134 J/mol K, the absolute temperature (degrees Kelvin)
let's start reducing everything to the international system of SI units
m = 2.5 g (1 kg / 1000g) = 2.5 10⁻³ kg
V = 5 liters (1 m3 / 1000 liter) = 5 10⁻³ m3
P = 1.2 atm (1,013 105 Pa / 1 atm) = 1.2 10⁵ Pa
T = 27 + 273 = 300K
Let's calculate the number of moles
n = PV / RT
n = 1.2 10⁵ 5 10⁻³ / (8.134 300)
n = 0.246 mol
To calculate the molecular weight we use a direct rule of proportions
PM = mass / n
PM = 2.5 10⁻³ / 0.246
PM = 2,254 kg / mol
PM = 2,254 g / mol
<span> R = GM/V² = 7.178E6 m </span>
<u />
It takes 20347.4098071s for light from the sun to reach Pluto.
The 6.1*10^9 is replaced by 6.1*10^12 on line 4 because we convert the distance from km to m.
c = speed of light. If a different value was given in the previous question then use that instead of the value I used to do the final calculation.
Answer:
velocity = 16.67[m/s]
Explanation:
To solve this problem we must use the following expression of speed, where we see the relationship between displacement and time.
velocity = displacement/time [m/s]
displacement = 50 [m]
time = 3 [s]
velocity = 50/3
velocity = 16.67[m/s]
Static charge is occurring