what is heat death of universe??????????????????
well suppose all stars are dead then will the temperature of the universe equalise in a finite time period.............
It's certainly an asymptotic rate of cooling. But it doesn't have to reach equilibrium to be dead. At some point long before that, the universe will reach a point where there is no concentration of energy high enough to be able to sustain even modestly local entropy-reversing processes. Say, when all stars are no warmer than brown dwarfs.I think it is more of an asymptotic process, rather than something that happens in a finite time. You couldn't say 'heat death will occur in X billions years from now'.