It pushes the positive ions together, the positive ions repel each other, causing the crystal to shatter
Answer:
frequency = 5.09 × 10^14 Hz
Energy = 3.373 × 10^-19 J
Explanation:
1. The wavelength of a substance is calculated using the formula:
λ = v/f
Where;
λ = wavelength (m)
v = speed of light (m/s)
f = frequency of light (Hz)
According to the information given, λ = 5.89 × 10 −7m, v = 3 × 10^8m/s, f =?
Using λ = v/f
f = v/λ
f = 3 × 10^8 ÷ 5.89 × 10 −7m
f = 0.509 × 10^(8+7)
f = 0.509 × 10^15
f = 5.09 × 10^14 Hz
2. Energy of a photon, E, can be calculated thus:
E = hf
Where;
h = Planck's constant (6.626 × 10^-34 J/s)
f = frequency (Hz)
E = 6.626 × 10^-34 × 5.09 × 10^14
E = 33.726 × 10^(-34+14)
E = 33.726 × 10^(-20)
E = 3.373 × 10^-19 J
The Haber process is typically carried out at a temperature of approximately . The rate of the forward reaction would be decreased if the temperature were lowered to .
For every increase in temperature, most reactions double in rate. On the other hand, a temperature that is too low cannot be used because the rate of the reaction will be significantly slowed. As a result, a compromise temperature is used, which is high enough for the rate to be quite fast but low enough to yield a relatively high ammonia yield. This reaction takes place at a pressure of 200 atm.
Higher temperatures accelerate the rate of reaction. We've seen that when reactions are carried out at a higher temperature, the rate of reaction increases. A higher temperature would allow the Haber process to occur more quickly.
Temperature increases typically increase the rate of reaction. The average kinetic energy of the reactant molecules increases as the temperature rises. As a result, a larger proportion of molecules will have the minimum energy required for an effective collision.
Learn to know more about the Haber process at
brainly.com/question/21867752
#SPJ4
Answer:
a)
b)
Sulphurdioxide
c)
d)
Incomplete combustion produce harmful gases.
Explanation:
a)
Carbon reacts with atmospheric oxygen to form carbondioxide as well as sulphur dioxide.
The chemical equations are as follows.
b)
Sulfur dioxide is very harmful to the environment to cause acid rains.
This harmful gas mix with rain water to form sulphuric acid.
c)
The balanced chemical equation for the reaction that produces harmful environmental effects is as follows.
d)
In the absence of proper amount of oxygen required for combustion, incomplete combustion will take place which will result in formation of more carbondioxide an other harmful gases.
Answer:
2.8 g/cm^3
Explanation:
Since density = mass/volume we should divide 24 by 2.5 and write the remaining units.