Question

A sample of gas occupies 220. mL at 10°C. What volume in mL will the gas have at 20°C?

Answer 1

`227.8\text{ mL}`

Step-by-step explanation:

Here, we want to get the volume of the gas at the new temperature

According to Charles' law, the volume of a given mass of gas is directly proportional to the temperature in Kelvin

Mathematically:

`(V_1)/(T_1)\text{ = }(V_2)/(T_2)`

where:

V1 is the initial volume which is 220 mL

T1 is the initial temperature (we convert this to Kelvin by adding 273 : 10 + 273 = 283 K)

V2 is the final volume which is what we want to calculate

T2 is the final temperature which is (20 + 273 = 293 K)

Substituting the values:

`V_2\text{ = }(220*293)/(283)\text{ = 227.8 mL}`