It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions. (GATE-1998-2.17) (a) The amount of work needed is path-dependent (b) Work alone cannot bring about such a change of state (c) The amount of work needed is independent of path (d) More information is needed to conclude anything about the path dependence or otherwise the work needed

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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.