spermatocytes never gets arrested.
primary oocytes arrest at diplotene stage of prophaseI till the female reach puberty. (remember oocyte porduction starts at the time of birth in females).
secondary oocytes are also arrested at the metaphaseII stage till the process of fertilisation take place.
since current flow and direction depend on drift velocity, so we can't expect the current to flow in circles. If such was the case the current flowing in the wire should also be circular because a wire is made up of a collection of disc. hence this cannot be the case here. I guess length should...
why enthalpy of neutralisation of HF is greater than 68KJ.
MY attempt
Enthalpy of neutralisation= Enthalpy of Ionisation + Δ(H+ + OH-)
Now,For very strong acid, enthalpy of Ionisation = 0,
Hence enthalpy of neutralisation= (H+ + OH-)= -13.7KCal
for weak acid, enthalpy of...