Answer:
I think B
Explanation:
There are more negative ions than positive ions
Question 1 is A.) an oxbow lake
Question 2 is C.) pebble
Answer:
The two steps which results in the release of energy are;
A) Attraction of Na⁺ and Cl⁻<span> to form NaCl
C) </span><span>The addition of an electron to each Cl atom
Explanation:
As we know<em> Born Haber Cycle </em>is helpful in measuring the Lattice Energies of Crystal systems indirectly. So, the formation of NaCl crystal takes place in several steps. Among all steps, The formation of Chloride ions (Electron Affinity) and binding of Na</span>⁺ and Cl⁻ (Lattice Energy) are exothermic in nature, while remaining all steps require energy to proceed (Endothermic).
C. When temperature increases gas molecules increase in kinetic which they move around
Answer:
T₂ = 251.6 K
Explanation:
Given data:
Initial temperature = 41°C
Initial volume = 4.87 L
Final volume = 6.08 L
Final temperature = ?
Solution:
Initial temperature = 41°C (41+273.15 = 314.15 K)
The given problem will be solve through the Charles Law.
According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.
Mathematical expression:
V₁/T₁ = V₂/T₂
V₁ = Initial volume
T₁ = Initial temperature
V₂ = Final volume
T₂ = Final temperature
Now we will put the values in formula.
V₁/T₁ = V₂/T₂
T₂ = V₂T₁ /V₁
T₂ = 4.87 L × 314.15 K / 6.08 L
T₂ = 1529.9 L.K / 6.08 L
T₂ = 251.6 K
