Answer:
Ea = 42,0 kJ/mol
Explanation:
It is possible to solve this question using Arrhenius formula:
Where:
k1: 3,36x10⁴ M⁻¹ s⁻¹
T1: 344K
Ea = ???
R = 8,314472x10⁻³ kJ/molK
k2 : 7,69 M ⁻¹ s⁻¹
T2: 219K
Solving:
<em>Ea = 42,0 kJ/mol</em>
<em></em>
I hope it helps!
Answer:
D. 27.099 x 10²³.
Explanation:
- It is known that every 1.0 mole of an atom contains Avogadro's no. (6.022 x 10²³) atoms.
<em>So, 4.5 mol of Hg will contain:</em>
(4.5 mol)(6.022 x 10²³) = 27.099 x 10²³ atoms.
<em>So, the right choice is: D. 27.099 x 10²³.</em>
Also known as reference frame, it is in dynamics<span>, system of graduated lines symbolically attached to a body that serve to describe the position of points relative to the body.</span>
Answer: 8 Moles of Oxygen
Explanation: The formula shows that there are (exactly) 4 oxygen atoms in each mole or formula unit. Therefore 4 * 2.00 = 8.
Answer:
A. All the molecules or atoms in motion have kinetic energy.
B. All the molecules or atoms in motion have thermal energy.
C. Each molecule or atom in motion has thermal energy.
D. Each molecule or atom in motion has kinetic energy.
Explanation:
