A meadow
fluttering
content
coverlet
B.
bedspread
grassland
moving lightly and quickly
satisfied
6. Read and Answer
190 g
Read the poem again and answer the following questions,
a. What did the wind ask the leaves to do?
b. How do the leaves look when they are old and ready to drop?
c. Why were the leaves so satisfied to come down?
d. When did the snow lay the bedspread over them?
7. Find the words that rhyme with the following words.
day
coldmall
flew , beds---
Put into Practice
tizoon
ob 26
Write your name at the

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.