For a reaction A + B arrow AB , Δ Cp is given by the equation 40+5 × 10-3 T JK -1 in the temperature range 300-600 K The enthalpy of the reaction at 300 K is -25 kJ, the enthalpy of reaction at 450 K is

Question

For a reaction A + B arrow AB , Δ Cp is given by the equation 40+5 × 10-3 T JK -1 in the temperature range 300-600 K The enthalpy of the reaction at 300 K is -25 kJ, the enthalpy of reaction at 450 K is (A) -10.4 kJ (B) -18.72 kJ (C) -25.64 kJ (D) -38.93 kJ

Tardigrade Admin · Accepted Answer

Δ H2-Δ H1=∫ limitsT1T2 Δ Cp d T

Q. For a reaction $A + B \to A B, Δ C_{p}$ is given by the equation $40 + 5 \times 1 0^{- 3} T J K^{- 1}$ in the temperature range $300 - 600 K$
The enthalpy of the reaction at $300 K$ is $- 25 k J$ , the enthalpy of reaction at $450 K$ is

-10.4 kJ

-18.72 kJ

-25.64 kJ

-38.93 kJ

$Δ H_{2} - Δ H_{1} = T_{1} \int T_{2} Δ C_{p} d T$

Q. For a reaction A+B→AB,ΔCp​ is given by the equation 40+5×10−3TJK−1 in the temperature range 300−600K The enthalpy of the reaction at 300K is −25kJ, the enthalpy of reaction at 450K is