Classify the following as rigid or movable system boundary: a. your mouth when you exhale b.  A cube is sliding on a rough surface. c. steam turbine d. human body when exercising

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Basic Thermodynamic Processes

The word 'thermodynamics' can be divided into two words, 'thermo' and 'dynamics'. The word thermo deals with the heat and thermal phenomenon, whereas dynamics deals with forces or external agent that drives the heat flow or aids in the motion of heat.