DP Chemistry (first assessment 2025)

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Question SPM.1A.SL.TZ0.5

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Date May Specimen-2023 Marks available [Maximum mark: 1] Reference code SPM.1A.SL.TZ0.5
Level SL Paper 1A Time zone TZ0
Command term Question number 5 Adapted from N/A
5.
[Maximum mark: 1]
SPM.1A.SL.TZ0.5

A gas storage tank of fixed volume V contains N molecules of an ideal gas at 300 K with a pressure of 40 kPa. N4molecules are removed, and the temperature is changed to 450 K.

What is the new pressure of the gas in kPa?


A.  15

B.  30

C.  45

D.  60

[1]

Markscheme

C