Q148 / 160 · AP EAMCET 2020 (17 Sep Shift 2) · Physics

First law of thermodynamics is represented by

Correct answer
A
\(d Q=d U+d W\)
B
\(d U=d W+p d V\)
C
\(d W=d Q+d U\)
D
\(d U=d Q+p d V\)

Solution

According to first law of thermodynamics, \(d Q=d U+d W\) where, \(d Q=\) heat supplied to the system , \(d U=\) change in internal energy of the system and \(d W=\) work done by the system.

Hence, the correct answer is option: 'A'.

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