Question

Define the following terms :
(a) System
(b) Isothermal processes
(c) Adiabatic processes
(d) State variables/state functions
(e) Work

Answer 1

(a) A set of things working together as part of a mechanism or an interconnecting network .

(b) it is a charge of system in which the temperature remains constant .

(c) It occurs without transfer of heat or mass of substance between a thermodynamic system and its surroundings.

(d) state variable is a variable that depends only on the final and initial states of a system and not on the path connecting these states.

(e) measures of energy transfer that occurs when an object is moved over a distance by an external force at least part of which is applied in the direction of the displacement.