Part 1: If 25.0g of C3H8 is combusted in a bomb calorimeter containing 3.5 L of water, calculate the heat generated if the temperature rises by 25 ˚C.

Question

𝑐 = 4.184 𝐽/mol K

Part 2: Calculate the molar enthalpy (∆H) in kJ/mol.

Answer 1

C3H8 + 5O2 --> 3CO2 + 4H2O
1.
q = mass H2O x specific heat H2O x (Tfinal-Tinitial)
q = 25 x 4.184 x (25)
q = ? estd 2500 J or 2.5 kJ.
That q is for 25 g so q/g is 2.5 kJ/25 g
Convert to mols.
estd 2.5 kJ x (molar mass C3H8/25 g) = ?

2.