Answer:
33.58 Moles
Explanation:
7.3 L * 4.6 M / L = 33.58 Moles
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Final temperature if the average specific heat capacity of the products is 2.5 J/g·°C is 1302.57°C
Given reaction:
C₂H₄O(g) → CH₄(g) + CO(g)
Now,
Given data for this reaction is :
ΔH°f =-77.4 kJ/mol
ΔH°vaporization =569.4 J/g
= 569.4J/g × 44.0g/mol
ΔH°vaporization= 25.082 kJ/mol
Now,
ΔH°vaporization = H(vapor) - H(liquid)
25.082 = H(vapor) + 77.4 kJ/mol
H(vapor) = -52.318 kJ/mol
Again,
ΔH°rxn = ( H( CO(g))) + (H(CH₄(g))) - (H( C₂H₄O(g)))
= -110.5 - 74.87 + 52.318
ΔH°rxn = -133.053 kJ/mol
Now,
Given
T₁= 93°C = 366K
We know that,
Q= mcΔT
133.053 × 10³ = 44 × 2.5 × (T₂ - 93)
T₂ = 1302.57°C
Thus, from the above conclusion we can say that , Final temperature if the average specific heat capacity of the products is 2.5 J/g·°C is 1302.57°C .
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Answer:
B. hydrogen bonding
Explanation:
Waxy surfaces are non-polar while also water is polar. There is a difference in electronegativity between the atoms O and H, in which O is more electronegative than H. Such a difference in electronegativity causes the two covalent O-H bonds to become polar in water, where O atom has a partial negative charge, and the H atom has a partial positive charge.
Therefore from the above explanation the correct answer is B
Answer:When the electron returns to its original position, an electromagnetic wave is produced. Depending on the kind of atom and the amount of energy, this electromagnetic radiation can take the form of heat, light, ultraviolet, or other electromagnetic waves. There are several ways of causing atoms to absorb energy.
Explanation...