Code point
U+29E7
Glyph appearance depends on your fonts.
U+29E7
SmU+29E7 THERMODYNAMIC is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Mathematical Symbols-B block.
Choose the representation you need, then copy its value.
U+29E7
10727
⧧
⧧
E2 A7 A7
29E7
000029E7
%E2%A7%A7
\u29E7
\u29E7
\u29E7
\29E7