Answer: The gas laws were developed at the end of the 18th century, when scientists began to realize that relationships between pressure, volume and temperature of a sample of gas could be obtained which would hold to approximation for all gases. Gases behave in a similar way over a wide variety of conditions because they all have molecules which are widely spaced, and the equation of state for an ideal gas is derived from kinetic theory. The earlier gas laws are now considered as special cases of the ideal gas equation, with one or more variables held constant.
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Answer:
They supported and spread ideas of Hellenism by creating society inside which art and culture flourished. City of Alexandria became a center of the world during the reign of this dynasty which flourished for almost three centuries.
Explanation:
Although Alexander The Great died in 323 BC his ideals continued to live. His successors managed to continue his path, with more or less success. In that sense Ptolemaic dynasty, that ruled in Egypt did the most. They supported art, culture, library in Alexandria was the largest one in the world. Egypt once more became the center of the world.
I assume the answer is true. There would have to be more trade, it comes with industrialization. Sorry I couldn't help more!
