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The heats of combustion of yellow phosphorus and red phosphorous are - 9.19 KJ and - 8.78 KJ respectively, then heat of transition of yellow phosphorus to red phosphorous is |
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Answer» Solution :(i) `P_(4) ("yellow")+5O_(2)(G) rarr P_(4)O_(10)+9.19 KJ` (ii) `P_(4) ("RED")+5O_(2)(g) rarr P_(4)O_(10)+8.78 kJ` SUBTRACTING, `P_(4) ("yellow")-P_(4) ("red")=1.13 KJ` `rArr P ("yellow")=P_(4) ("rad")+1.13 KJ` So, HEAT of transition of yellow to red phosphorus is `-1.13 KJ` |
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