Agas mixture consists of 7 lbm of o2, 8 lbm of n2, and 10 lbm of co2. determine (a) the mass fraction of each component, (b) the mole fraction of each component, and (c) the average molar mass of the mixture. 2. determine the binary diffusion coefficient of o2 in nz at the following conditions (assume the mixture is dilute for all cases): (a) 200 k and 1 atm, (b) 400 k and 0.5 atm, and (c) 600 k and 5 atm.

the answer is definitely c.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

weight of any object is given by

w = m*g

where m is mass of the object and g is the acceleration due to gravity.

for earth the value of g is 9.8 m/s^2 so

w=117.6 n m=12 g=?

117.6=12g => g=9.8 m/s^2

which is the force of gravity on earth.