Project ForgeThermodynamics
First Law of Thermodynamics
GATE 2016
Easy
Which of the following statements are TRUE with respect to heat and work? (i) They are boundary phenomena (ii) They are exact differentials (iii) They are path functions
- Aboth (i) and (ii)
- both (i) and (iii)
- Cboth (ii) and (iii)
- Donly (iii)
Explanation
Heat and work are both boundary phenomena (they only exist as energy crosses a system boundary) and both are path functions (inexact differentials, depending on the process). They are not exact differentials — unlike state properties such as internal energy or entropy.
Source: GATE ME 2016 Set-1 (2016)
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