Question

"The calorific value of cooking gas (LPG) is \[50{\text{ }}kj \cdot {g^{ - 1}}\] ". What does it mean ?

Answer 1

Hint:The quantity of heat released during the burning of a particular amount of a substance, usually a fuel or food (see food energy), is known as its heating value (or energy value or calorific value).

Complete step by step answer:
The total energy released as heat when a substance undergoes complete combustion with oxygen under standard conditions is referred to as the calorific value. Typically, a hydrocarbon or other organic molecule reacts with oxygen to produce carbon dioxide and water while also releasing heat.

The quantity of heat released during the burning of a fuel is its heat value. Heat value, often known as energy or calorific value, is a measurement of a fuel's energy density given in energy (joules) per unit of mass (e.g. kilograms). LPG has a calorific value of \[50{\text{ }}kj \cdot {g^{ - 1}}\] , which indicates that 1 gram of LPG will burn for \[50{\text{ }}kJ\] . The heat energy produced will be \[50{\text{ }}kJ\] .

Additional Information: The calorific value of a fuel determines its efficiency. If the value is high, then the efficiency will be high as well. If the value is low, the efficiency will suffer as well. The efficiency of a product is directly related to its calorific value. The calorific value of LFG is directly proportional to its methane content; the higher the methane content, the higher the calorific value. Because the content of LFG varies depending on the age of the waste, the calorific value varies as well.

Note: It is critical to understand the calorific value of fuel in order to carry out our daily activities. This information aids us in calculating the amount of energy we carry. This information is required by gas shippers and suppliers in order to bill gas customers. It also aids in the calculation of gas shippers' and suppliers' transportation costs.