Question

If a gas absorbs 200 J of heat and expands by 500 cm3 against a constant pressure of 2x105 Nm-2, then change in internal energy is

Answer 1

ANSWER

From first law of thermodynamics,

Change in internal energy is

ΔU=q−w=q−PΔV

   

       

      =200−2×105×500×10−6

   

       =100J

Answer 2

Answer:

I really don't know.......