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- Fri Jun 03, 2016 2:06 pm
#26114
Complete Question Explanation
(See the complete passage discussion here: lsat/viewtopic.php?t=10866)
The correct answer choice is (C)
This question asks about the transition temperature of glass, and requires a solid grasp of the passage as a whole. This is because the transition temperature of glass is discussed in both the first and third paragraphs of the passage. In the first paragraph, the author observes that glass has a transition temperature rather than a freezing point, usually a range of a few hundred degrees Celsius. In the third paragraph, the author mentions that in order for glass to flow, it must be heated to at least 350 degrees Celsius.
Answer choice (A): In the third paragraph, the author states that impurities could lower viscosity and speed the flow of medieval glass, not that such impurities could increase the transition temperature of the glass. This choice fails the Fact Test and should be ruled out of contention.
Answer choice (B): The author does not claim that the transition temperature of glass has only recently been calculated with precision—the recent calculations in the passage refer to the amount of time it would take for glass to sag noticeably.
Answer choice (C): This is the correct answer choice. Given the fact that glass requires a temperature of at least 350 degrees Celsius to flow (line 43), and that glass’ transition temperature is generally a range of a few hundred degrees Celsius (lines 15-16), it is fair to infer that glass’ transition temperature is well above 350 degrees Celsius.
Answer choice (D): This is an Opposite Answer, since the transition temperature of glass is the point above which glass takes on the properties of a liquid.
Answer choice (E): This is an Opposite Answer as well, since the third paragraph provides that glass must be heated to at least 350 degrees Celsius to achieve the ability to flow. The passage provides no support for the notion that some types of glass require a temperature well below 350 degrees Celsius.
(See the complete passage discussion here: lsat/viewtopic.php?t=10866)
The correct answer choice is (C)
This question asks about the transition temperature of glass, and requires a solid grasp of the passage as a whole. This is because the transition temperature of glass is discussed in both the first and third paragraphs of the passage. In the first paragraph, the author observes that glass has a transition temperature rather than a freezing point, usually a range of a few hundred degrees Celsius. In the third paragraph, the author mentions that in order for glass to flow, it must be heated to at least 350 degrees Celsius.
Answer choice (A): In the third paragraph, the author states that impurities could lower viscosity and speed the flow of medieval glass, not that such impurities could increase the transition temperature of the glass. This choice fails the Fact Test and should be ruled out of contention.
Answer choice (B): The author does not claim that the transition temperature of glass has only recently been calculated with precision—the recent calculations in the passage refer to the amount of time it would take for glass to sag noticeably.
Answer choice (C): This is the correct answer choice. Given the fact that glass requires a temperature of at least 350 degrees Celsius to flow (line 43), and that glass’ transition temperature is generally a range of a few hundred degrees Celsius (lines 15-16), it is fair to infer that glass’ transition temperature is well above 350 degrees Celsius.
Answer choice (D): This is an Opposite Answer, since the transition temperature of glass is the point above which glass takes on the properties of a liquid.
Answer choice (E): This is an Opposite Answer as well, since the third paragraph provides that glass must be heated to at least 350 degrees Celsius to achieve the ability to flow. The passage provides no support for the notion that some types of glass require a temperature well below 350 degrees Celsius.