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

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.

Word equation for k+ h2o yield koh + h2

What volume would 2.25 moles of ne has occupy at stp?