1.

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

Answer»

`4.2 xx 10^(-3) MLS^(-2)`
`3.2 xx 10^(-4) mLs^(-2)`
`3.8 xx 10^(-4) mLs^(-2)`
`4.6 xx 10^(-4) mLs^(-2)`

Solution :`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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