Please be clear in explanation!
1. Define density, mass, weight, and specific gravity. A room is4m wide, 5m long, and 3m high. Air pressure in the room is 110 KPaabsolute and the temperature is 27C. Assuming ideal gas behaviour,determine the mass, density, and specific gravity of the air usingwater as reference density. (The density of water is 1000kgm-3, themolar mass of air is 29g/mol, and R=8.314 J/(kg mol)).
Let the minimum fresh air requirement for the room be 9.0 AirChange Rate per hour. That is, the complete air filling the room iscompletely changed 9.0 times in one hour. If the ventilationrequirement is met entirely by a fan calculate the volume flow rateper hour (m3/hour) required. Determine the flow capacity of the fanin m3/s. Determine the fan casing diameter if the velocity is notto exceed 6 m/s.
