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30cm3 of oxygen at 10 atm pressure is placed in a…

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30cm3 of oxygen at 10 atm pressure is placed in a 20cm3 container. Calculate the new pressure if temperature is kept constant.

A. 6.7 atm

B. 15.0 atm

C. 60.0 atm

D. 66.0 atm

QUICK ANSWER…

B

SOLUTION…  

In this problem, the volume and pressure changed, but the temperature is constant. This implies that Boyle’s law is applicable:

30cm3 of oxygen at 10 atm pressure is placed in a 20cm3 container. Calculate the new pressure if temperature is kept constant.

Now for the right answer to the above question:

  1. Option A is incorrect.
  2. Option B is correct.
  3. C is incorrect.
  4. D is not the correct answer.

QUICK TIPS…

You may please note these/this:

  • At constant temperature, Boyles law is used to solve for the new or initial values of changing volume and pressure.

Use the questions and answers session to raise further questions and deal more on this topic…

/ culled from 2017 JAMB-UTME Chemistry question 7 /

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