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Thermal properties of oils (II): Latent heat of vaporization. At the boiling point at atmospheric pressure, the heat required to convert one unit mass of a substance from a liquid state to a gas state is known as the latent heat of vaporization, with the unit being kJ/kg. The latent heat of vaporization for gasoline is approximately 290–315 kJ/kg, for kerosene it is 250–270 kJ/kg, for diesel it is 230–250 kJ/kg, and for lubricating oils it is 190–230 kJ/kg. Welcome to in-depth discussions============================================= Discussions on the two-stage combined cracking process can be found at http://bbs.hcbbs.com/thread-1560503-1-1.html (Source: Haichuan Chemical Industry Forum). [Petroleum and Chemicals Section] A compilation of professional “basic knowledge” posts is being carried out (the large forum offers surprises and prizes for participants). More information is available at http://bbs.hcbbs.com/thread-1557057-1-1.html (Source: Haichuan Chemical Industry Forum). We encourage various groups to create or individuals to post basic knowledge-related posts; the content can be gathered from the Internet or created originally. Participants can use multiple topics, and there are no restrictions on the way in which they present their content – it could be an explanation of a noun or an introduction to a series of principles. What are some suggestions and methods for getting in touch with cleaners? The regular administrator will reward the content that performs excellently. You will also be rewarded for regions where the activities are more intensive. (Regions should also carry out summarization and optimization based on the amount of such content available in their area.) ———————————————— The second phase of the event runs from February 20, 2016, to the end of June 2016; at least 50 award vouchers are available for you to claim (mugs, power banks, USB drives, and other prizes or event benefits). Awards can be given at any time based on performance, and additional rewards can also be granted at any time depending on performance. (12,000 activity points and rewards await the regions that perform well)