A line graph depicts the variation of the solubility of oxygen in water with temperature. The vertical axis is labeled, solubility (grams of oxygen per 100 g H2O), and ranges from 0.0010 to 0.0070 in increments of 0.0010. The horizontal axis is labeled, temperature (degree C), and ranges from 0 to 100 in increments of 10. The line for solubility slopes downward from a point on the vertical axis just below 0.0070, first with a higher slope and then with a smaller slope and moves to the point (100, 0) on the horizontal axis.
Which statement is the best explanation for the graph?
(1 point)
Responses
As temperature rises, the space between liquid particles increases, allowing more room for gas particles.
As temperature rises, the space between liquid particles increases, allowing more room for gas particles.
As temperature rises, gas particles are moving faster and are more likely to enter the solution.
As temperature rises, gas particles are moving faster and are more likely to enter the solution.
As temperature rises, the space between liquid particles decreases, leaving less room for gas particles.
As temperature rises, the space between liquid particles decreases, leaving less room for gas particles.
As temperature rises, gas particles are moving faster and may leave the solution.
1 answer
The best explanation for the graph is:
As temperature rises, gas particles are moving faster and may leave the solution.
This explains the downward slope of the solubility of oxygen in water as temperature increases, indicating that less oxygen can dissolve in the warmer water because the increased kinetic energy allows gas particles to escape from the solution more easily.
