Question

120 J of heat is added to a gaseous system, whose internal energy change is 60 J, then the amount of external work done is ____________.

पर्याय

• 150 J

• 70 J

• 110 J

• 60 J

Answer 1

120 J of heat is added to a gaseous system, whose internal energy change is 60 J, then the amount of external work done is 60 J.

Explanation:

`"Q" = Delta "U" + "W"`

`therefore "W" = "Q" - Delta "U"`

`= 120 - 60 = 60  "J"`