It is known from experience that different amounts of energy are required to raise the temperature in a degree identical masses belonging to different substances. For example, 4.5 kJ of energy are required to raise the temperature of 1 kg of iron of 20 to 30 ° C, while this energy requires nine times (41.8 kJ, to be exact) in order to raise the temperature of one kg of liquid water in the same amount. Therefore, it is desirable to have a property for comparing the energy storage capacity of several substances.
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.