Question

A beaker is filled to the 500 mL mark with alcohol. What increase in volume (in mL) does the beaker contain when the temperature changes from 5° C to 30° C? (Neglect the expansion of the beaker, evaporation of alcohol and absorption of water vapor by alcohol.) The volume coefficient of expansion γγ for alcohol = 1.12 x 10-4 K-1

Answer 1

"1.4 mL" is the appropriate solution.

Step-by-step explanation:

According to the question,

• 
  `v_0=500`
• 
  `\alpha =1.12* 10^(-4)`
• 
  `\Delta \epsilon = 25`

Now,

Increase in volume will be:

⇒
`\Delta V = \alpha* v_0* \Delta \epsilon`

By putting the given values, we get

`=1.12* 10^(-4)* 500* 25`

`=1.12* 10^(-4)* 12500`

`=1.4 \ mL`