A conceptual design for a cumene production process ( 250 ton/day of cumene) is to be performed. Cumene is produced from benzene and propylene by the following reaction: C6H6+C3H6C9H12 An undesired reaction of cumene and propylene to form p-diisopropylbenzene ( p-DIPB) also occurs: C9H12+C3H6C12H18 Both reactions are irreversible. The following table summarises the Input Information for the process. Perform an overall material balance for the process, based on the input-output structure and the reaction information provided. Provide flowrates in kmol/h