Question

You are conducting a calorimetry experiment using a calorimeter with 500mL of water in its outer chamber to determine the enthalpy of reaction of a chemical reaction. The initial temperature of the water is 25°C. After the reaction, the temperature of the water is 32. 5°C. Disregarding any heat loss to the walls of the container, calculate the ΔHr0. The specific heat of water is 4. 18 J/(g•K).

Answer choices


A. )ΔHr0= 25. 7 kJ


B. )ΔHr0= 45. 3 kJ


C. )ΔHr0= 105. 8 kJ


D. )ΔHr0= 15. 7 kJ


E. )ΔHr0= -140. 0 kJ

Answer 1

Answer is down below!

Step-by-step explanation:

You are conducting a calorimetry experiment using a calorimeter with 500 mL of water in its outer chamber to determine the enthalpy of reaction of a chemical reaction. The initial temperature of the water was 25 °C. After the reaction, the temperature of the water was 57.4 °C. Disregarding any heat loss to the walls of the container, calculate the Hf). (The specific heat of the water is 4.18 J/ (g*K)