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2.2.3a Melting, boiling, condensation and solidification

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Question 96

A student places a beaker of ice-cold water on a digital scale in a warm, humid room. The student records the total mass of the beaker and its contents over 30 minutes. The results are shown in the table:

Time (minutes)Total mass (g)0150.010150.820151.530152.1 \begin{array}{|c|c|} \hline \text{Time (minutes)} & \text{Total mass (g)} \\ \hline 0 & 150.0 \\ \hline 10 & 150.8 \\ \hline 20 & 151.5 \\ \hline 30 & 152.1 \\ \hline \end{array} Time (minutes)0102030​Total mass (g)150.0150.8151.5152.1​​

Why does the total mass increase?

A

Water vapor condenses onto the beaker.

B

The ice in the beaker melts.

C

The water in the beaker evaporates.

D

The water in the beaker freezes.

Markscheme

2.2.3a Melting, boiling, condensation and solidification Questions

  1. IGCSE
  2. /Physics
  3. /2.2.3a Melting, boiling, condensation and solidification

313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.

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