At 25° C and 730 mm pressure, 380 mL of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760 mm pressure?

Question

At 25° C and 730 mm pressure, 380 mL of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760 mm pressure? (A) 365 mL (B) 449 mL (C) 569 mL (D) 621 mL

Tardigrade Admin · Accepted Answer

As the temperature is constant, Boyle- law is applicable. p1 V1=p2 V2 V1=380 m L, p1=730 m m, V2=? p2=760 m m 730 × 380=760 × V2 V2=(730 × 380/760)=365 mL

Q. At $2 5^{\circ} C$ and $730 mm$ pressure, $380 m L$ of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at $760 mm$ pressure?

365 mL

449 mL

569 mL

621 mL

As the temperature is constant, Boyle- law is applicable.
$p_{1} V_{1} = p_{2} V_{2}$
$V_{1} = 380 m L,$
$p_{1} = 730 mm,$
$V_{2} = ?$
$p_{2} = 760 mm$
$730 \times 380 = 760 \times V_{2}$
$V_{2} = \frac{730 \times 380}{760} = 365 m L$

Q. At 25∘C and 730mm pressure, 380mL of dry oxygen was collected. If the temperature is constant, what volume will the oxygen occupy at 760mm pressure?