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Figure 5 shows a flask fitted with a glass tube dipped into a beaker containing water at room temperature. The cork fixing the glass tube to the flask is airtight.

      

Figure 5 shows a flask fitted with a glass tube dipped into a beaker containing water at room temperature. The cork fixing the glass tube to the flask is airtight.
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Use the information and the figure to answer the questions
a) State what is observed when ice-cold water is poured on the flask
b) Give a reason for the observation

  

Answers


John
a) Water rises up through the glass tube into the flask.

b) The ice-cold water causes air inside to contract. The pressure of the air inside decreases and the higher atmospheric pressure pushes the water up
johnmulu answered the question on April 13, 2017 at 13:56


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