Chapter 6, Problem 6.36P

Interpretation Introduction

Interpretation:

The type of calorimeter that measures $\Delta E$ and that meausres $\Delta H$ is to be identified.

Concept introduction:

Calorimeter is a device that is employed to measure the heat absorbed or released by the system. Calorimeter is of two types:

1. Coffee cup calorimeter

2. Bomb calorimeter

Coffee cup calorimeter is employed to determine the heat absorbed or released by the substance placed in the calorimeter at constant pressure. Coffee cup calorimeter is generally used in case of solid that does not dissolved in water. The heat released by the solid is gained by the water when no heat escapes through calorimeter.

$-q_{\text{solid}}=q_{\text{water}}$

Bomb calorimeter is employed to determine the heat absorbed or released by the substance placed in the calorimeter at constant volume. Bomb calorimeter is generally used in case of combustion reactions. The heat lost by the reaction is gained by the calorimeter.

$-q_{\text{rxn}}=q_{\text{calorimeter}}$