Boiling water- hot water rises from the bottom of the pan where it is initially heated and cooler water moves down to replace it, causing a circular motion.
(99% of the total mass). 49% of carbon, 44% of oxygen, 6% of hydrogen, 0.1-0.3% of nitrogen.
Quantum numbers are used to describe the location of electrons in atoms.
Principal quantum number(n) tells which energy shell the electrons reside in.
The first energy shell n = 1, second energy shell n = 2 and it goes on.
Azimuthal quantum number (l) states which orbital the electron is most likely to reside in. the number of orbitals in an energy shell depends on the principal quantum number. number of orbitals are from 0 to n-1
If l = 0, s orbital
l = 1 , p orbital
l = 2, d orbital
in 2nd energy shell the number of orbitals are 0,1 etc.
5s-
Principal quantum number n = 5
Azimuthal quantum number l = 0
6p
Principal quantum number n = 6
Azimuthal quantum number l = 1
4d
Principal quantum number n = 4
Azimuthal quantum number l = 2
Answer:
Molecular Formula => (CH₂)₇ => C₇H₁₄
Explanation:
Empirical ratio is calculated from the sequence...
%/100wt => grams/100wt => moles => mole ratio => reduce mole ratio => Empirical Ratio
C: 85.7% => 85.7g => (85.7/12)mol = 7.14 mole
H: 14.3% => 14.3g => (14.3/1)mol = 14.3 mole
C:H mole ratio => 7.14:14.3
Reduced mole ratio (divide by the smaller mole value) => (7.14/7.14):(14.3/7.14) => Empirical Ratio => 1:2 => Empirical Formula => CH₂
Molecular Wt = Whole No. Multiple of Empirical Formula Wt.
M.Wt = N(Emp Wt) => 98g = N(14g) => N = 7
∴Molecular Formula => (CH₂)₇ => C₇H₁₄
<u>Answer:</u> The correct answer is Option D.
<u>Explanation:</u>
Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients. It is represented by
For a general chemical reaction:
The is written as:
There are 3 conditions:
- When ; the reaction is product favored.
- When ; the reaction is reactant favored.
- When ; the reaction is in equilibrium.
At equilibrium, the ratio of concentration of reactants to the concentration of products is equal to 1.
At equilibrium, the rate of forward reaction is equal to rate of backward reaction.
Hence, the correct answer is Option D.