Why is N2 less reactive at room temperat | Class 12 Chemistry Chapter The p-Block Elements, The p-Block Elements NCERT Solutions

Question:

Why is N2 less reactive at room temperature?

Answer:

Dinitrogen (N₂) IS formed by sharing three electron pairs between two nitrogen atoms.The two nitrogen atoms are joined by triple bond(N≡N). The nitrogen atom is very small in size ,therefore the bond length is also quite small(109.8 pm) & as a result the bond dissociation energy is quite high(946Kj / mol).This reason leads N₂to be very less reactive at room temperature.

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Comments

Aman singh
2019-05-10 10:02:09

If the size is small then the bond dissociation enthelpy or energy is high due to the the electrons are tightly bonded and having stronger nuclear charge bcz only the number ofelectrons are much as compared to their size

MANMOHIT
2018-12-19 05:53:55

Give the increasing order acidic stronger of hclo ,hclo2, hclo3 ,hclo4?

Ritik
2018-08-18 18:20:18

Thanks

Suhas m
2018-02-08 17:53:04

Thank u so much for helping

speedy
2017-11-28 23:18:50

Excellent it is very useful

Akash Darshan
2017-02-16 10:19:49

For boards, specific answer is required. Nitrogen forms pÏ-pÏ bond with other nitrogen due to small size and high electronegativity. Thus they exist as a very stable diatomic molecule with Bond enthalpy = 941.4kJ/mol which is very difficult to overcome. Thus they are stable at room temperature and less reactive

SATVIR SINGH
2016-12-18 19:10:37

reply to simran question dinitrogen is unreactive at room temperature. The room temperature varies according to the conditions in which dintrogen is kept.But with the increase in temperature dintrogen reactivity increases.It Liquefies at 77 K and freezes at63 K

SIMRAN
2016-11-10 20:15:51

NOT PROPER DUDE IF I ASK YOU AT WHAT TEMP IT REACT THAN WHAT YOU SAY

SATVIR SINGH
2016-03-25 10:56:43

The nitrogen atom is small in size but the two nitrogen atoms are attached to each other by tripple bond.So three bonds have to be broken to make N2 reactive ,as a result the bond dissociation energy is high.

Faryal
2016-03-25 10:22:57

If the size is small then why is the bond dissociation energy high?

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Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 3: Why is N2 less reactive at room temperature?....

Why is N2 less reactive at room temperat | Class 12 Chemistry Chapter The p-Block Elements, The p-Block Elements NCERT Solutions

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