Marine microalgae can be cultivated in photobioreactors for biofuel production. To optimize biomass yield, LED arrays are used to provide precise wavelengths of light.

The dry mass productivity ( $P$ ) of the microalgal culture can be calculated using this equation:

\frac{E}{0.25C}

where:

$E$ is the light energy absorbed by the culture
$C$ is the biomass energy conversion factor

The table below shows the parameters measured for a specific strain of microalgae under LED illumination:

$\text{ / MJ m}^{-3}\text{ d}^{-1}$	$\text{ / MJ kg}^{-1}$
$7.35 \times 10^{-2}$	$24$

Use the equation and the table to calculate the dry mass productivity ( $P$ ) of the microalgae.

Give your answer in standard form and give the units.

Marine microalgae can be cultivated in photobioreactors for biofuel production. To optimize biomass yield, LED arrays are used to provide precise wavelengths of light.

The dry mass productivity ( $P$ ) of the microalgal culture can be calculated using this equation:

\frac{E}{0.25C}

where:

$E$ is the light energy absorbed by the culture
$C$ is the biomass energy conversion factor

The table below shows the parameters measured for a specific strain of microalgae under LED illumination:

$\text{ / MJ m}^{-3}\text{ d}^{-1}$	$\text{ / MJ kg}^{-1}$
$7.35 \times 10^{-2}$	$24$

Use the equation and the table to calculate the dry mass productivity ( $P$ ) of the microalgae.

Give your answer in standard form and give the units.

Energy and ecosystems (A-level only)

Question 1

Markscheme

Energy and ecosystems (A-level only)

Question 1

Markscheme

Energy and ecosystems (A-level only)

Question 1

Energy and ecosystems (A-level only) Questions

Energy and ecosystems (A-level only)

Question 1

Energy and ecosystems (A-level only) Questions