How many kilograms is 50 liters of 92 gasoline?
2 Answers
One liter of 92 gasoline weighs approximately 0.72 kilograms, so 50 liters would be about 50*0.72=36 kilograms. 1 kilogram equals 1000 grams, and 1 jin (Chinese pound) is 500 grams, so converting to jin gives 36*2=72 jin. Gasoline appears as a transparent, flammable liquid with a distillation range of 30°C to 220°C. Its main components are C5～C12 aliphatic hydrocarbons and cycloalkanes, along with a certain amount of aromatic hydrocarbons. Gasoline has a high octane number (anti-knock combustion performance) and is classified into grades such as 89, 90, 92, 93, 95, 97, and 98 based on octane ratings. Starting from January 2012, the gasoline grades 90, 93, and 97 were revised to 89, 92, and 95. The calorific value of gasoline is approximately 44,000 kJ/kg (the calorific value of fuel refers to the heat produced by the complete combustion of 1 kg of fuel). The weights of one liter of 92#, 95#, and 98# gasoline are 0.725 kg, 0.737 kg, and 0.74 kg, respectively. Due to seasonal climate variations, the density of gasoline may slightly change, and different grades of gasoline have different densities. The density of 90# gasoline is 0.72 g/ml; 93# gasoline is 0.725 g/ml; 97# gasoline is 0.737 g/ml; and the densities of 92# and 95# gasoline are 0.725 g/ml and 0.737 g/ml, respectively.
I'm particularly interested in calculating the weight of gasoline because my driving friends often ask me about this. The standard density of 50 liters of 92-octane gasoline is approximately 0.725 kilograms per liter, so the weight is 50 multiplied by 0.725, equaling 36.25 kilograms. Converted to jin (a Chinese unit of weight), one kilogram equals two jin, so 36.25 multiplied by 2 is 72.5 jin. However, gasoline density changes with temperature; in hot summers, the density decreases, and the weight might drop to around 71 jin, while in cold winters, it can approach 73 jin. This minor fluctuation doesn't affect refueling, but if you overload your car, it can accelerate suspension wear, so it's advisable to check tire pressure after refueling to maintain balance. On average, 72.5 jin is a reliable figure, useful for estimating vehicle load.
