Chapter 3.6, Problem 42PP

Interpretation Introduction

Interpretation: How many Kilocalories are produced in following should be calculated-

1. Burning of a cup of popcorn that gives 131 kJ when it is burned in calorimeter
2. Burning of a sample of butter which gives 23.4 kJ when it is burned in calorimeter.

Concept Introduction:

• conversion factor used is-

$1\text{ k}cal=4.184kJ$

Or,

$\begin{array}{c}1kJ=\frac{1}{4.184\text{ k}cal}\\ \text{= }0.239\text{ k}cal\end{array}$