Mothballs are composed primarily of the hydrocarbon naphthalene $($C$10$H$8$

$).$ When $1\mathrm{.}249$ g

of naphthalene burns in a bomb calorimeter, the temperature rises from $25\mathrm{.}461$C

to $30\mathrm{.}070$C

$.$

Part A

Part complete

Find $\backslash$Delta rU

for the combustion of naphthalene. The heat capacity of the calorimeter, determined in separate experiment, is $5\mathrm{.}112$ kJ$$C$1.$ PART B: Find $\backslash$Delta rH

for the combustion of naphthalene at $298$ K

$.$

Express your answer using four significant figures.