Question
Human cannot use cellulose as food – Why?
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Answer
Human cannot use cellulose as food because our digestive systems do not contain the necessary enzymes such as glycosidases (or) cellulases that can hydrolyse the cellulose. But animals contain cellulose enzyme in their digestive system and they can digest cellulose. So cellulose can used as food for animals but not for human.
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The decomposition of $Cl _2 O 7$ at 500 K in the gas phase to $Cl _2$ and $O _2$ is a first order reaction. After 1 minute at 500 K , the pressure of $Cl _2 O _7$ falls from 0.08 to 0.04 atm . Calculate the rate constant in s ${ }^{-1}$.
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$t =800 sec ,\left[ N _2 O _5\right]=1.45 mol L ^{-1}=\left[ A _2\right]$
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→$t =800 sec ,\left[ N _2 O _5\right]=1.45 mol L ^{-1}=\left[ A _2\right]$
$t =1600 sec$
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