The statement that best describes the graph of the relationship between the volume and temperature is; "It is a straight line with a positive slope showing that an increase in temperature results in an increase in volume."
The graph of volume against temperature is used to demonstrate Charles law. This law states that, the volume of a given mass of gas is directly proportional to its absolute temperature at constant pressure.
According to this law, the volume increases as temperature increases. This is the meaning of the positive slope of the straight line graph.
Hence, the statement that best describes the graph of the relationship between the volume and temperature of an enclosed gas is "It is a straight line with a positive slope showing that an increase in temperature results in an increase in volume."
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