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Question 19M.1A.SL.TZ2.13

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ2.13
Level SL Paper 1A Time zone TZ2
Command term Question number 13 Adapted from N/A
13.
[Maximum mark: 1]
19M.1A.SL.TZ2.13

The equation p V T = constant is applied to a real gas where p is the pressure of the gas, V is its volume and T is its temperature.

What is correct about this equation?

A. It is empirical.

B. It is theoretical.

C. It cannot be tested.

D. It cannot be disproved.

[1]

Markscheme

A

Examiners report

This is a Nature of Science question and was poorly answered by candidates. It had a very low discrimination index and 60% of candidates chose response B when A was the accepted answer. The question is in the context of a real gas. For publication this will be made clearer.

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