The surface temperature is 27 C and pH2O,Sat = 3.567 kPa. A parcel of air in an unstable atmosphere must rise how high before it can form a cloud?

Clouds are formed in the atmosphere by the condensation of water vapor that is present in the atmosphere around a hygroscopic nucleus. Clouds are essentially water droplets that are suspended in the sky. As the cloud's weight exceeds a certain threshold, it comes down on the earth in the form of precipitation due to the force of gravity. The altitude of the formation of clouds depends on various physical factors of the air parcel.