It allows people in different places and different countries to use the same units, avoid mistakes and understand each other more easily. The common base 10 of all units makes it easier and has more accurate calculations that are made without cumbersome conversion factors.
Answer:
The value of K at this temperature = 2.25
Explanation:
According to question the equilibrium reaction is
H₂(g) + I₂(g) ⇄ 2 HI(g)
Initial concentration 2 2 8
At equilibrium 2 + 2x 2 + 2x 8 - 2x
At equilibrium concentration of HI changes to become 6 Molar
So 8 - 2x = 6
or, x = 1
So concentration of H₂ = 2 + 2 x 1 = 4 molar
concentration of I₂ = 2 + 2 x 1 = 4 molar
Kc =
⇒ Kc =
⇒ Kc = = 2.25
Answer:
C₄H₁₂ + 7O₂ --> 4CO₂ + 6H₂O
Explanation:
Organic molecules react with O2 to create water and CO2 in combustion processes. C4H12 is an organic molecule that combines with O2 to create water and CO2 as shown in the reactions.
As a result, this is the sole reaction that obeys the general combustion equation.
Answer:
The question isn't worded properly, but if 1 or 2 are DECREASED, the frequency of collisions of specified molecules will decrease.
Explanation:
Catalysts only facilitate reaction once molecules collide. Increased temperature makes molecules move more, and thus collide more. For concentration, if there are more molecules in the same amount of room/liquid, there will be more collisions because there are more of the molecules to collide.
Answer:
d = 11400 kg/m³
Explanation:
The density of lead is 11.4 g/cm³
We need to convert the density in kg/m³ in scientific notation.
We know that,
1 kg = 1000 g
1 cm = (1/100) m = 0.01 m
Density,
So, the density of the lead is 11400 kg/m³.