First, we determine the energy required to melt one gram of ice. This is given by:
Energy = mass * latent heat of fusion
Energy = 1 g * 334 J/g
Energy = 334 J
Next, we use Planck's equation which is:
Energy = number of photons * Planck's constant * speed of light / wavelength
334 = n * 6.64 x 10⁻³⁴ * 3 x 10⁸ / 5.49 x 10⁻⁶
n = 9.20 x 10²¹
9.20 x 10²¹ photons need to be absorbed by the ice.
Answer:
Particle density is the volumetric mass of the solid soil. It differs from bulk density because the volume used does not include pore spaces. Particle density represents the average density of all the minerals composing the soil.
Hope that helps
<span>While explaining the differences between the rate law and integrated rate law of the reaction, two statements apply from the options. They are
1. The rate law shows the relationship between the rate of a reaction and the concentrations of the reactants. This will give us an idea about the speed that reactants are turned to compounds and products.
2. The integrated rate law is a relationship between the concentration of a reactant and time. This gives an idea of amount of reactant left after a period of time.</span>
