1a. A student claims that the reaction is first order with respect to F2(g). Do you agree or disagree? Justify your answer using the data above. 1b. What is the initial rate of disappearance of F2(g) in trial 3? Justify your answer.

2a. Calculate the average rate of disappearance of NH3 between 0 and 1.54 x 10^2 s. Use this calculated rate to determine the rate of appearance of H2 over the same time period.

2b. What are the rates of disappearance of NH3 ad rate of appearance of H2 between the times 1.54 x 10^2 and 4.83 x 10^2 s?

answer: the enthalpy of the overall chemical reaction is +87.88 kj or +88 kj.

according to hess's law, the overall enthalpy of a reaction is the difference between the sum of enthalpy values of all the products and the sum of enthalpy values of all the reactants.

δh(reaction) = ∑nδh(products) - ∑nδh(reactants)

δh(reaction) = [δh +δh] - [δh]

δh(reaction) = [1(-287.02) + 1(0) ] - [1(-374.9)] kj = +87.88 kj

here, δh (pcl3) = -287.02 kj, δh(cl2) = 0, δh(pcl5) = -374.9 kj

therefore, enthalpy of the overall reaction is +87.88 kj or +88 kj.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

catya that's not even a b or c