Answer: Option (a) is the correct answer.
Explanation:
As we know that entropy is the measure of degree of randomness. So, more is the mass of an atom more will be the electrons present in it and hence, more will be the repulsion between them.
As a result, more will be the entropy of the atom. For example, He, Ne, Ar, Kr are all group 18 elements. And, when we move down a group then there occurs an increase in atomic size of the atoms. Therefore, entropy also increases on moving down a group.
Thus, we can conclude that the correct order of increasing standard molar entropy for the noble gases is as follows.
He < Ne < Kr < Ar
The answer is D I believe
The appropriate answer is c. the solid phase, liquid phase and gas phase of a substance. A phase diagram is used to represent the phase or physical state of a substance at a given temperature or pressure. Pressure is represented on the y axis while temperature is represented on the x axis. Phase diagrams are used in areas such as Physics, Chemistry, Engineering, Mineralogy and Material Science.
Answer:
See figure 1.
Explanation:
In this case have to take into account that <u>all structures</u> must have the formula: . If we remember the <u>general formula for alkanes</u>: if we have <u>"7" carbons (n=7)</u> we will have <u>16 hydrogens</u>. Therefore all the structures that fit with this formula are alkanes.
Answer:
Ver explicacion
Explanation:
<u>a) 2,2,4-trimetilhexano</u>
En esta molecula tenemos una cadena lineal de seis carbonos. En los carbonos 1,2 y 4 tenemos grupos metilos.
<u>b) 3,6-dietil-2-metiloctano</u>
Para esta molecula tenemos una cadena lineal de 8 carbonos. En el carbono dos tenemos un grupo metilo y en los carbonos tres y seis tenemos dos grupos etilo.
<u>C) 3,5-dietil-2,8-dimetil-6-propilnonano</u>
Finalmente, para esta molecula tenemos una cadena de nueve carbonos. En los carbonos dos y ocho tenemos 2 grupos metil, en los carbonos tres y cinco tenemos 2 grupos etilo y en el carbono seis tenemos un grupo propilo.
Ver figura 1
Espero sea de ayuda!