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Express 4.2 L h^(-2) to mL s^(-2)...

Express `4.2 L h^(-2)` to `mL s^(-2)`

A

`4.2 xx 10^(-3) mLs^(-2)`

B

`3.2 xx 10^(-4) mLs^(-2)`

C

`3.8 xx 10^(-4) mLs^(-2)`

D

`4.6 xx 10^(-4) mLs^(-2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`4.2 L h^(-2)`
`1L = 1000 mL`
unit factor 1` = (1000 mL)/(1L)`
1h = 3600 s
Unit factor` = (1h)/(3600 s)`
`(4.2L)/(h^2) = 4.2 xx ( (1000 mL)/(1L)) xx ((1h)/(3600 s))^2`
` = 3.24 xx 10^(-4) mL s^(-2)`
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