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5. Thermodynamics and thermochemistry — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry5. Thermodynamics and thermochemistry1 Mark
MCQ
Identify the state function among the following
  • A
    $q$
  • B
    $q -w$
  • ✓
    $q + w$
  • D
    $q/w$
✓

Answer

Correct option: C.
$q + w$
c
Both work and heat are path functions. Their values depends on the path chosen to reach a particular state.

However, the change in internal energy which is equal to the sum of heat and work, is a state function. Its value is independent of the path chosen to reach a particular state.

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