1. For the following question assume the pressure and amount of gas is constant. Mana wants to go outside and play soccer She inflates her soccer ball while inside her house with 4.60 L of gas at a
temperature of 21°C. Then she goes outside to play, where the temperature is 34°C.
Will the volume of the soccer ball increase or decrease
What will the new volume of the soccer ball be? Draw a box around your final answer.

Answer is in the photo. I couldn't attach it here, but uploaded it to a file hosting. link below! Good Luck!

cutt.ly/wzUiVyK

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.

if you mean hydrogen and oxygen then water is the product