One mole of hydrogen gas behaves ideally initially at 10.0 atm and 300 K. Calculate AH, AU, q and w when the system is allowed to expand adiabatically against constant
external pressure of 5.0 atm until equilibrium with final temperature of 250 K.
Assume CP, m = 30 J mol-1 K-1

clouds form

solid ice forms on leaves.

water droplets form on grass.

each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

c) should be the answer.