1.At 25∘25^\circ25∘C and 1 bar, which of the following has a non-zero ΔHf∘\Delta H_f^\circΔHf∘?a.Br2(l)Br_2(l)Br2(l)b.CCC (graphite)c.O3(g)O_3(g)O3(g)d.I2(s)I_2(s)I2(s)Login to continueOnly logged in users canattempt or see the solution.
