Question

For data obtained using a bomb calorimeter (constant volume calorimetry), which of the following equations defines AErxn for a reaction? O AEpx = -PAV O AE = Gv O AErxn=-PAV O AErx = (v + W Submit Request Answer

Answer 1

let E₁ be the energy before the reaction , q amount of heat is supplied and after the supply of heat the final state reaches to E₂ so to do so the work done is W

and we know that W =- Pdv where p is the external pressure and dv = change in volume

E₁ +q +w=E₂

E_2- -E₁ = q +W

this is first law of thermodynamics

since the volume is constant

dv=0 ,so work done =0

$\delta E$ =E₂-E₁=q

$\delta E$=q (answer)