Answer:
P₂ = 8 atm
Explanation:
According to the Gay Lussac's law,
The pressure of given amount of gas is directly proportional to the its kelvin temperature at constant volume.
P ∝ T
P = K T
P/T = K
P₁/T₁ = P₂/T₂
Given data:
Initial pressure = 2.00 atm
Initial temperature = 300 K
Final temperature = 1200 K
Final pressure = ?
Solution:
Formula:
P₁/T₁ = P₂/T₂
P₂ = P₁×T₂/T₁
P₂ = 2.0 atm ×1200 K / 300 K
P₂ = 2400 atm/ 300
P₂ = 8 atm
pH of the solution = 4.8
<h3>Further explanation </h3>
NH₄Cl is a salt of a weak base and a strong acid so that it will be partially hydrolyzed
Reaction:
NH₄Cl -----> NH₄⁺ + Cl⁻
NH₄ will be hydrolyzed in water
NH₄⁺ + H₂O ------> NH₃ + H₃O⁺ (H⁺)
This solution releases H⁺ ions so they are acidic
Formula
Kw = The water equilibrium constant = 10⁻¹⁴
Kb = the ionization constant of a base = 1.8.10⁻⁵
M = 0.46
[H+]=√2.55 x 10⁻¹⁰ = 1.599 x 10⁻⁵
pH = - log [H+]
pH = 5-log 1.599 = 4.796≈ 4.8
Answer:
radiant energy
Explanation:
microwaves convert electrical energy into radiant energy
Because water molecules are polar, water can dissolve many other polar substances. Water can also dissolve ionic compounds such as table salt.
Answer. Chemical reaction had occurred and both the powders are different substances.
Explanation:
As density is an intensive property of the substance.Which means that different substance have different densities.
Density =
Density of powder 1,
Density of powder 2,
On comparing both the densities of the powders we can say that both the substances are different. So we can conclude that the chemical reaction had occurred.