Question

A sample of gas occupies a volume of 50.0 milliliters in a cylinder with a movable piston. The pressure of the sample is 0.90 atmosphere and the temperature is 298 K. What is the volume of the sample at STP

Answer 1

The volume of sample at STP is = 41.22 ml

Step-by-step explanation:

Given data

`P_(1)` = 0.9 atm

`V_(1)` = 50 ml

`T_(1)` = 298 K

At STP

`P_(2)` = 1 atm

`T_(2)` = 273 K

From ideal gas equation

`(P_1(V_1))/(T_1) = (P_2(V_2))/(T_2)`

`((0.9)(50))/(298) = ((1) V_2)/(273)`

`V_2` = 41.22 ml

Therefore the volume of sample at STP is = 41.22 ml