100 mL of PH3 on decomposition produced phosphorus and hydrogen. The change in volume is

Question

100 mL of PH3 on decomposition produced phosphorus and hydrogen. The change in volume is (A) 50 mL increase (B) 500 mL decrease (C) 900 mL decrease (D) nil

Tardigrade Admin · Accepted Answer

underset2 text vol 2 PH 3 arrow underset3 text vol 3 H 2+2 P 2 vol of PH 3 give 3 vol of H 2 ∴ 100 m L of PH 3 gives 150 mL of H 2 ∴ Increase in volume =150 m L-100 m L =50 m L

Q. $100 m L$ of $P H_{3}$ on decomposition produced phosphorus and hydrogen. The change in volume is

50 mL increase

500 mL decrease

900 mL decrease

nil

$2 vol 2 P H_{3} \to 3 vol 3 H_{2} + 2 P$
2 vol of $P H_{3}$ give 3 vol of $H_{2}$
$∴ 100 m L$ of $P H_{3}$ gives $150 m L$ of $H_{2}$
$∴$ Increase in volume $= 150 m L - 100 m L$ $= 50 m L$

Q. 100mL of PH3​ on decomposition produced phosphorus and hydrogen. The change in volume is

50 mL increase

500 mL decrease

900 mL decrease

nil

2 vol 2PH3​​→3 vol 3H2​​+2P 2 vol of PH3​ give 3 vol of H2​ ∴100mL of PH3​ gives 150mL of H2​ ∴ Increase in volume =150mL−100mL =50mL

Q. $100 m L$ of $P H_{3}$ on decomposition produced phosphorus and hydrogen. The change in volume is

$2 vol 2 P H_{3} \to 3 vol 3 H_{2} + 2 P$
2 vol of $P H_{3}$ give 3 vol of $H_{2}$
$∴ 100 m L$ of $P H_{3}$ gives $150 m L$ of $H_{2}$
$∴$ Increase in volume $= 150 m L - 100 m L$ $= 50 m L$