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
Answers
Answered by
1
Answer:
50ml increase (a)is the correct option
Answered by
5
Answer:
(A) 50 mL increase
Explanation:
Quantity of PH₃ = 100mL (Given)
The equation for decomposition is described as -
4PH₃ = P4 + 6H2
According to the Gay-Lussac's law -
If the pressure and temperature remain same, then 4 ml of PH₃ gives 6ml of H2.
Therefore, 100 ml of PH₃ will yield 150 ml of H2.
Increase in volume
= 150-100
= 50 ml. (Volume of solid phosphorus being negligible).
Therefore there will be a 50 mL increase in volume.
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