$($b$)$ For the following stream data determine

$($i$)$ Pinch point and pinch temperature.

$($ii$)$ Minimum hot and cold utilities requirements.

$($iii$)$ Heat transfor area required for a MER network using counter current exchanger.

$($iv$)$ Minimum unit required for MER network.

Stream Data:

$($Plz write it in a paper,and explain the iii and iv too$)$