Plz explain this point.. e least angle strain but it is not practically true. ounds the stabilit

But stability of cycloalkane when determined experimentally it gives different results

sir plz donot write

plz explain in terms of heat of hydrogen a.

ok

now u can write

According to Bayer cyclopentane should be more stable than cyclohexane. As he proposed the theory considering cycloalkane to be planar.

ok

ok

But heat of combustion gives different result. According to heat of combustion data it was found that cyclohexane is most stable than cyclopentane.

So where Bayer was wrong?

sir ACC. to him cyclopentane is more stable than cyclohexane

But later it was proved that cyclohexane exist in chair form so it can easily attain the bond angle of tetrahedral carbon i.e 109⁰28'. So it has zero angle strain

ok

Now any confusion

Bayer theory ek farzi theory hai. For the sake of history we study it.

ooko

sir what is use of this concept here

wait explaining

in terms if heat of combustion na??

yes sir

shweta cyclobutane and cyclobutane have higher heat of combustion per Ch2 group than cyclohexane...so stability of cyclohexame is much more than cyclopentane and cyclobutane

This data suggests the value of heat of combustion of cycloalkanes

but baeyer considered the cyclopentane to be most stable by considering strain factors

but accordin to this rule as no. of carbon increases stability decreases so how cyclohexan.....

see this data...the heat of combustion per CH2 group

have you check the data shweta

see angle strain is 0 in case of cyclohexane due to its chair conformation

yes checked

yes sir

Jo picture send kiya vo Dekho

no of carbon atoms inversely related to stability

yes Shweta it is true that more the heat of combustion is more then stability decraeses...but here we consider per Ch2 group..which data suggests that it is less for cyclohexane

o

per ch2 likhna bhool gye

vo

yes this things keep in mind...while considering both these theories

shweta you check the data i have sent...in this you get that carbon increases heat of combustion increases...but when we find per carbon for each cycloalkanes we find it is less for cyclohexane

ok sir