In which of the following sets do all species have the same number of electrons
2 answers:
Answer:
Option a
Explanation:
a)
Atomic number of I = 53
No. of electrons = atomic number + no. of negative charge
= 53 + 1 = 54
Xe
Atomic number of Xe = 54
In a neutral atom, no. of electron is equal to no. of protons.
So. no. of electron in Xe = 54
a)
Atomic number of I = 56
No. of electrons = atomic number - no. of positive charge
= 56 - 2 = 54
All the species in the set a have 54 electrons.
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Answer: The statement, average kinetic energy of the gas particles is greater in container A because its particles move faster is correct.
Explanation:
Kinetic energy is the energy obtained due to the motion of an object or substance.
where,
T = temperature
This means that kinetic energy is directly proportional to temperature.
So, when heat is provided to container A then its molecules will start to move rapidly from one place to another which will cause more collisions between the atoms.
Hence, average kinetic energy will be more in container A.
Whereas container B is placed at room temperature which is low than that in container A. So, molecules in container B will move at almost same speed and therefore, specific collisions will be there. So, average kinetic energy in container B will be less than that in container A.
Thus, we can conclude that the statement, average kinetic energy of the gas particles is greater in container A because its particles move faster is correct.