Homework #6 – due nov 12 (tuesday) a gas stream consisting of 65 mole% h2, 34.5 mole% co, and 0.5 mole% ch4 is fed to a process to synthesize methanol (co + 2h2 → ch3oh). the stream from the reactor is fed to a condenser where essentially all of the synthesized methanol is condensed and all of the unreacted gases are recycled back to the reactor. to avoid a buildup of methane, a purge stream is removed from the recycle. the overall conversion of co is 85% and the methane mole fraction in the reactor inlet [n3/(n1+n2+n3)] is 0.03. 1. find the amount of methanol produced by this process (n11). 2. find the fraction of recycle that is purged [np/(nr+np)]

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects