According to Hitchock what is the difference between mystery and suspense?

Hitchcock is the master of suspense.
He says that 'mystery is an intellectual process' and 'suspense is an emotional process.' An intellectual process gets you working something out. Whereas an emotional process only happens with you have been given information.

For example: if a bomb goes off in a room it doesn't lead up to any suspense,  yet if they are told in 5 minutes a bomb is going to go off this
creates suspense as they have been given information.