i need help solving for volume

Question

A sample of oxygen occupies 11.0 mL under a pressure of 100 kPa at a temperature of 15 °C. What volume will it occupy under at 25 °C

Answer 1

Are temperature and volume changing at constant pressure? If so, use Charles' law:

T₁/V₁ = T₂/V₂

Work only with absolute temperatures.

V₂ = (T₂/T₁)V₁ = [(25 + 273)K / (15 + 273)K] (11.0 mL) ≅ 11.4 mL