## Question

###### 1. (a) Microchip etching roughly follows the relation ð‘‘ = 16.2 âˆ’16.2ð‘’^âˆ’0.21ð‘¡ , ð‘¡ < 100, where d is the depth of the etch inmicrometers (Âµm) and t is the time of the etch in seconds. What arethe units associated with the numbers 16.2 and 0.21?2. A room of volume V contains air having equivalent molar massM (in g/mol). Calculate the mass of air that would leave the roomif the temperature of the room is raised from T1 to T2. Assume thatthe air pressure in the room is maintained

1. (a) Microchip etching roughly follows the relation ð‘‘ = 16.2 âˆ’ 16.2ð‘’^âˆ’0.21ð‘¡ , ð‘¡ < 100, where d is the depth of the etch in micrometers (Âµm) and t is the time of the etch in seconds. What are the units associated with the numbers 16.2 and 0.21? 2. A room of volume V contains air having equivalent molar mass M (in g/mol). Calculate the mass of air that would leave the room if the temperature of the room is raised from T1 to T2. Assume that the air pressure in the room is maintained at P0. Given â€¢ Ideal gas law PV = nRT , where n is the number of moles, P is pressure, T is temperature and R is the gas constant

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