Register

GATE2020: 22

• recategorized by
0 0 votes
To facilitate mass transfer from a gas to a liquid phase, a gas bubble of radius $r$ is introduced into the liquid. The gas bubble then breaks into $8$ bubbles of equal radius. Upon this change, the ratio of the interfacial surface area to the gas phase volume for the system changes from $3/r$ to $3n/r$.  The value of $n$ is _____________________.

Please log in or register to answer this question.

Voting & Accepting an answer helps improve the community
Answer:

Related questions

0 0 votes
0 0 answers
soujanyareddy13 asked Nov 3, 2020
GATE2020: 45
A batch reactor is inoculated with $1 \:g/L$ biomass. Under these conditions, cells exhibit a lag phase of $30$ min. If the specific growth rate in the log phase is $0.00...
0 0 votes
0 0 answers
soujanyareddy13 asked Nov 3, 2020
GATE2020: 49
Growth of an organism on glucose in a chemostat is characterized by Monod model with specific growth rate = $0.45 \:h^{-1}$ and $K_{s}= 0.5 \:g/L$. Biomass from the subst...
0 0 votes
0 0 answers
soujanyareddy13 asked Nov 3, 2020
GATE2020: 20
Solvents $A$ and $B$ are completely immiscible. Solute $S$ is soluble in both these solvents. $100\: g$ of $S$ was added to a container which has $2\: kg$ each of $A$ and...
0 0 votes
0 0 answers
Milicevic3306 asked Mar 26, 2018
GATE BT 2017 | Question: 22
A $5$ liter chemostat is fed fresh medium at $0.2$ liters/minute having a substrate concentration of $25$ grams/liter. At steady state, the outgoing stream has substrate ...
0 0 votes
0 0 answers
Milicevic3306 asked Mar 25, 2018
GATE BT 2013 | Question: 22
A chemostat is operated at a dilution rate of $0.6\; h^{-1}$. At steady state, the biomass concentration in the exit stream was found to be $30\; gl^{-1}$The biomass prod...