At 500C, hydrogen iodide decomposes according to 2HI(g)H2(g)+I2(g) For HI(g) heated to 500C in a 1.00L reaction vessel, chemical analysis determined these concentrations at equilibrium: [H2]=0.315M,[I2]=0.315M, and [HI]=2.66M. If an additional 1.00mol of HI(g) is introduced into the reaction vessel, what are the equilibrium concentrations after the new equilibrium has been reached? [HI]= [H2]= [I2]