Describe the direction of the forces you would exert in the Sim to make the orange object reach the target without touching any of the walls . Use only UP DOWN LEFT , and RIGHT . Explain your reasoning . When would you exert these forces ? Why ?

> b takes place in the gas phase in an isothermal tubular reactor. the feed is one mole of a per one mole of c, an inert. the entering temperature and pressure are 427°c and 10 atm, respectively. the gas constant r = 0.08206 atm · l/mol · k.

the answer is d.) potassium