Question

when gas is in a vessel expands its thermal energy decreases the process involved is​

Answer 1

Answer:

adiabatic process

Explanation:

Mistake : it's not thermal energy. read as internal energy

dq = du + dw

ext heat energy = int energy + work done

in an isolated system, work is done at the cost of int energy...i.e, dq = 0 then du = - dw

hence it's an adiabatic process