Under the same conditions of temperature and pressure, hydrogen (Hz) diffuses __ than oxygen (Oz). (A) two times slower (B) eight times slower (C) four times faster (D) sixteen times faster

clouds form

solid ice forms on leaves.

water droplets form on grass.

> 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 awnser is group 12