Question

½H2(g) + ½I2(g) → HI(g), ΔH = +6.2 kcal/mole 21.0 kcal/mole + C(s) + 2S(s) → CS2(l) The temperature of the surroundings will: increase or decrease

Answer 1

Are we supposed to graph or solve

Answer 2

½H2(g) + ½I2(g) → HI(g), ΔH = +6.2

This reaction has an positive entalpy, meaning heat flows from the surroundings into the system, thus decreasing surrounding temperature.