A gas balloon has a volume of 80.0 mL at 300K , and a pressure of 50.0 kPa. if the pressure changes to 80.0 kPa and the temperat
1 answer:
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Answer:
The answer is Option a, that is "−9kJmole,5kJmole".
Explanation:
Please find the complete question in the attached file.
In the question, it uses the catalyst inside a process, which does not modify the process eigenvalues, however, it decreases the active energy with an enthalpy of -9kJmole, and also the power for activating decreases around 13 to 5 kJ mole, that's why the choice a is correct.
Answer:
Avogadro’s number was calculated by determining the number of atoms in 12.00 g of carbon-12.
Explanation:
The number of particles presents in one mole of a substance is known as Avogadro's number.
Avogadro's number is atoms or molecules or ions or particles present in one mole of a substance. It is denoted by the symbol
or
. It is a dimensionless quantity.
Avogadro's number was proposed by Jean Perrin but named in the honor of italian scientist Amedeo Avogadro.
Avogadro's number is the number of atoms present in 12 grams of carbon-12.
Answer: 1. Lewis acid :
, Lewis base :
2. Lewis acid :
, Lewis base :
3. Lewis acid :
, Lewis base :
Explanation:
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
1.
As gained electrons to complete its octet. Thus it acts as lewis acid.
acts as lewis base as it donates lone pair of electrons to electron deficient specie
.
2.
As is short of two electrons to complete its octet. Thus it acts as lewis acid.
acts as lewis base as it donates lone pair of electrons to electron deficient specie
.
3.
As is short of electrons to complete its octet. Thus it acts as lewis acid.
acts as lewis base as it donates lone pair of electrons to electron deficient specie
.