Study the following two reactions. select all that apply. c(graphite) + o2(g) → co2(g) + 94.05 kcal c(diamond) + o2(g) → co2(g) + 94.50 kcal what could you infer from the information given above? the enthalpy of co2 is greater than the reactants. e2 - e1 is negative. graphite and diamond have equal enthalpy. diamond must have lower internal energy.

the answer is a and have a great day

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.