Question

When 0.451g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises from 26.7∘C to 29.6∘C.Find ΔErxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined in a separate experiment, is 5.86 kJ/∘C.

Answer 1

q(v) = Ccal in kJ/C x delta T
That gives you q = dE in kJ for 0.451g
That x molar mass gives dE in kJ/mol.

Answer 2

i understand how to solve this but i do not know the calorimeter constant

Answer 3

nevermind. thank you!

Answer 4

It's in the last sentence.