# A 200 mL glass containing 198 mL of water at 30°C. The expansion coefficient of volume is 4,4 x #10^(-4)#°C. If the glass and water are heated, the water will expand and spill at what temperature?

##### 1 Answer

#### Explanation:

Let us assume that the volume of glass does not change and it is only the water that undergoes thermal expansion.

The **coefficient of volume expansion** is defined as follows:

To fill the beaker the volume of water must expand from

To calculate the increase in temperature that is required to accomplish this volume change, invert equation (1) and write it as,

So the temperature at which the water will start overflowing is,