Question

A 6.55g sample of aniline (C₆H₅NH₂, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter with a heat capacity of 14.25 kJ/°C. If the initial temperature was 32.9 °C, use the information below to determine the value of the final temperature of the calorimeter.

Answer 1

To determine the final temperature of the calorimeter after the combustion of aniline, we can use the equation Heat gained by the calorimeter = Heat lost by the aniline sample. By equating these two equations, we can solve for the final temperature of the calorimeter.

Step-by-step explanation:

To determine the final temperature of the calorimeter, we can use the equation:

Heat gained by the calorimeter = Heat lost by the aniline sample

Heat gained by the calorimeter = (mass of water + heat capacity of calorimeter) * change in temperature

Heat lost by the aniline sample = mass of sample * molar heat of combustion of aniline

By equating these two equations, we can solve for the final temperature of the calorimeter.