Although almost every family now has a car, as a common means of transportation for modern people, just look at the streets of the city and you will find vehicles flowing endlessly on the streets. It is already known that it is necessary to extract energy from food every day to provide the human body with the kinetic energy needed for daily life, where is the source of kinetic energy for the car?
Common energy: Gasoline With the development of new energy, new energy vehicles are gradually moving in people's vision. High-rise buildings have replaced the low-footed buildings of the old society, and with the progress of the times, everyone knows that the new will replace the old, but nevertheless, the commonly used power source of cars now is the kinetic energy converted by gasoline burning heat energy. For example, seeing gas stations all over the city, seeing gas stations in specific places in the suburbs, these large-scale constructions, while witnessing the expansion of the automobile field, also mean the development of the national economy. The fuel at a gas station varies from vehicle to vehicle, including diesel, gasoline, natural gas, etc. But when it comes to gasoline, the price of gasoline is not cheap. For the working group who often drive out, car fuel consumption is also an unavoidable expense in daily life, and many car owners are also concerned about gasoline prices and car fuel consumption. It is often said that the owner can add how much money can he add when he goes to the gas station to refuel? Of course, careful friends may find that when refueling a car, the gas station measures the price of gasoline in units of "liters", and the usually commonly used units of measurement are "pounds" and "kilograms". So, how many kilometers of "one liter of gasoline" is a car?
1 liter = 1 kg = 1 kg? Many books say that 1 liter is 1 kg, and 1 kg is 1 kg. For many people, they believe it to be true. Because that's just written in a book. People are somewhat dependent on book knowledge. If you believe it, don't say you're an old driver. The book is not entirely true. That's just a general concept. Liters indicate volume. For example, how much water can be put in the cup? Kilograms are units of weight. For example, a person's weight is 50 kilograms. There is a conversion formula for these two units, but the variable density is present in the formula. There are many more factors that affect density in everyday life. Gasoline is affected by temperature in environmental factors. For a simple example, in the case of No. 92 gasoline, if the density of No. 92 gasoline is 0.725g/ml at the usual temperature, it is known that the mass of 1 liter of No. 92 gasoline is 0.725L, and the density = mass volume, in other words, in the case of certain temperature conditions
Gasoline price changes Many times people will ask, why is the refueling of a gas station so cheap? yes. Due to a certain change in the price of the car, there is also a certain change in the price of gas station oil in the same area. Because the source of gasoline is extracted from oil a little bit, so things are thin and expensive, extract more, the price will of course be low, and the earth's resources are limited, but gasoline is a non-renewable resource, so it will be reduced a little, and often the price will rise slightly. First of all, gasoline is affected by temperature, and gasoline is volatile liquid, so some car owners choose to refuel morning and evening. Because the temperature at this time is lower than noon, the gasoline density is high, theoretically more oil can be added, and the gasoline in the tank is reduced at a low temperature, which can save gasoline.
That's a good idea. That is, the practitioner deviates slightly from the plan. Gasoline from gas stations is stored in special containers, and the external temperature has little effect on it. Therefore, no matter when you go to refuel, the gas station's gasoline density volume will not fluctuate up and down. Of course, think about volatilization. Of course, car fuel consumption is a small expense in daily life, so the car can be said to be a consumable. However, there is a workaround for anything. First buy a car with low fuel consumption and high cost performance, and then use it later to save a lot of money. Secondly, if the driving habits are good, the fuel consumption of the car will also be reduced, so in fact, the fuel consumption of the car is not as bad as imagined.
In short, the conversion of the two units of gasoline volume and weight can be said to be a little knowledge, but for the old driver, this is more, for the old driver, there is not so much common sense, it can not be said that the old driver has little to do with the fuel consumption of the car, but somewhat fate. Moreover, the old driver does know much more than Meng Xinbai, who has just touched the car. Sure enough, there is a lot of contact and understanding, so there is the word "seniors and juniors".