Question

A 475 cm3 sample of gas at 25c is heated to 45 c. What volume would the gas expand to in order to maintain the same pressure?

Answer 1

0.507 L or 507 cm³

Step-by-step explanation:

Given,

Initial Volume, V1 = 475 cm³or 0.475 L

Initial temperature, T1 = 25 °C or 298.15 K (since, K = °C + 273.15)

Final temperature, T₂ = 45°C or 318.15 K

We can calculate the new volume;

Using the concept of Charles' law ;

`(V1)/(T1)=(V2)/(T2)`

Therefore,

To get, V2, we use;

`V2=(V1T2)/(T1)`

`V2=((0.475L)(318.15K))/(298.15K)`

`V2=0.507L`

Thus, the gas would expand to a volume of 0.507 L or 507 cm³ to maintain the same pressure.