Question oxygen
Oxygen gas is placed inside a tank with a constant volume. The graph shows the estimated temperature , in kelvins, of the oxygen gas when its pressure is atmospheres.
- The line slants sharply up from left to right.
- The line begins at the approximate point (1.6 comma 190).
- The line passes through the following approximate points:
- (3 comma 350)
- (6 comma 700)
- (8 comma 933)
What is the estimated temperature, in kelvins, of the oxygen gas when its pressure is atmospheres?
Oxygen gas is placed inside a tank with a constant volume. The graph shows the estimated
Easy-difficulty · SAT Math · Linear Functions — Graphs in slope-intercept, point-slope, standard form. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice C is correct. For the graph shown, the x-axis represents pressure, in atmospheres, and the y-axis represents temperature, in kelvins. Therefore, the estimated temperature, in kelvins, of the oxygen gas when its pressure is atmospheres is represented by the y-coordinate of the point on the graph that has an x-coordinate of . The point on the graph with an x-coordinate of has a y-coordinate of approximately . Therefore, the estimated temperature, in kelvins, of the oxygen gas when its pressure is atmospheres is .
Choice A is incorrect. This is the pressure, in atmospheres, not the estimated temperature, in kelvins, of the oxygen gas when its pressure is atmospheres.
Choice B is incorrect and may result from conceptual or calculation errors.
Choice D is incorrect and may result from conceptual or calculation errors.
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