A nozzle is a device designed to control the direction or characteristics of a fluid flow (especially to increase velocity) as it exits (or enters) an enclosed chamber or pipe. A nozzle is often a pipe or tube of varying cross sectional area, and it can be used to direct or modify the flow of a fluid (liquid or gas). Nozzles are frequently used to control the rate of flow, speed, direction, mass, shape, and/or the pressure of the stream that emerges from them.
Phototrophism vs photosynthesis. Phototrophic organisms convert light energy into chemical energy in the form of ATP. The use of light energy to make ATP is called photophosphorylation. Photosynthetic organisms (photoautotrophs) also use light energy to make both ATP and reduced electron carriers (NADH or NADPH).
In review, chemical energy is energy stored in chemicals'. Energy is 'the ability to do work. Chemical energy is a type of potential energy that is energy due to the position of an object or objects. The potential energy is in the form of chemical bonds that are forces that hold the atoms together in a chemical. All energy in nature ultimately comes from the sun, and chemical energy is no exception. Plants have the ability to convert solar energy into chemical energy.