Question

A sample of gas as a volume of 425 mL at 25°C at and 760 tour what volume with this gas sample have at STP

Answer 1

`\Rightarrow V_2 = 389mL`

Step-by-step explanation:

To solve this question, we could use Charles' law since both the number of mole and pressure are constant

At STP pressure P = 760 tor and Temperature = 273K

V1 =425mL, T1 =298K and T2 =273K

and
`(V_1)/(T_1) =(V_2)/(T_2)`

`\Rightarrow V_2 =T_2*(V_1)/(T_1)`

`\Rightarrow V_2 =273*(425)/(298)`

Therefore,
`\Rightarrow V_2 = 389mL`