Q.

The state functions are----

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a

heat and work

b

heat and entroy

c

entropy and internal energy

d

work and entropy        

answer is C.

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Detailed Solution

  • The state of a thermodynamic system is described by its measurable or macroscopic (bulk) properties. 
  •  the state of a gas by quoting its pressure (p), volume (V), temperature (T ), amount (n) etc. 
  • Variables like p, V, T, internal energy, enthalpy, entropy  are called state variables or state functions because their values depend only on the state of the system and not on how it is reached
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