An air-water vapour mixture has a dry-bulb temperature of 333 k and a dew-point temperature of 313 k. the total pressure is 101.3 kpa and the vapour pressure of water at 313 k is 7.3 kpa and that at 333 k is 19.91 kpa. the humidity of air expressed as kg of water vapour per kg of dry air is (a) 0.048 (b) 0.079 (c) 0.122 (d) 0.152

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Acrystal that absorvd water from air is (blank)a. aqueousb. homogenousc. hygroscopicd. efflorescent

Asubstance is held in an open container. its particles move past one another at random speeds but do not leave the container. heat is removed from the system, and the particles slow down. when enough heat is removed, the particles no longer have enough speed to overcome the weak attractive forces between them. when this happens, the substance enters its solid state. the process described above is known as .