Thermochemistry

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Thermochemistry
a) C3H4(g) + 4 O2(g) → 3 CO2(g) + 2 H2O(g)
= ( ) – ( )
= [3 × ( 2)] + [2 × ( 2 )]– [ ( 3 4) + 4 × Δ ( 2 )]
ΔH = [3 × (-393.5 kJ/mol)] + [2 × (-241.8 kJ/mol)] – [184.9 kJ/mol + 4 × 0 kJ/mol]
ΔH = (-1180.5 kJ/mol) + (-483.6 kJ/mol) – 184.9 kJ/mol
ΔH = -1849 kJ/mol
b) C = n1C1 + n2C2
– The overall heat capacity is given by C.
– The number of each species’ moles, n1 and n2 (n1 for …
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