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How much heat is produced when 2.63 g of...

How much heat is produced when 2.63 g of phosphorous and 40g of Bromine is allowed to react according to following equation
`P_(4(s))+6Br_(2(l)) rarr 4PBr_(3(g)), DeltaH=-486 kJ`

A

10.30 kJ

B

20.6 kJ

C

40.12 kJ

D

5.63 kJ

Text Solution

Verified by Experts

The correct Answer is:
A
`P_(4)+6Br_(2) rarr 4P Br_(3) " "DeltaH=-486 kJ`
Limiting Reagent `= P_(4)` excess reagent `= Br_(2)`
`124 gm rarr -486 kJ`
`2.63 gm rarr ?`
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