A car travels 1000 meters in 5 seconds. What is its average velocity?
2 answers:
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Answer:
(a)
P₂ = 7.13 atm
(b)
T₂ = 157.14 K
Explanation:
(a)
V₁ = initial volume = 3.7 L = 3.7 x 10⁻³ m³
V₂ = final volume = 0.85 L = 0.85 x 10⁻³ m³
P₁ = Initial Pressure of the gas = 0.91 atm = 0.91 x 101325 = 92205.75 Pa
P₂ = Final Pressure of the gas = ?
Using the equation
= 722860 Pa
= 7.13 atm
(b)
T₁ = initial temperature =283 K
T₂ = Final temperature = ?
using the equation
T₂ = 157.14 K
Explanation: The atoms attain the configuration of inert gas by sharing electrons.
Lets take an example of HCl,
Atomic number of H is 1 and it has only 1 valance electron. whereas atomic number of chlorine is 17 and it has 7 valance electron.
When hydrogen atom combine with chlorine atom then they share electrons through covalent bonding in order to complete their octet.
According to figure,
Electronic configuration of H = 1
Electronic configuration of Cl = 2,8,7
Now, after share of electron
Electronic configuration of H = 2
Electronic configuration of Cl = 2,8,8
Hence, we can conclude that when atoms share electrons then their octet gets complete and atoms achieve noble gas electronic configuration.
