Extremely small packing is favorable for packed towers as the surface area increases.

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Scraped surface crystallizers can be used for viscous fluids up to 10000 cp.

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Statement 1: Multi-stage cross-current extraction – the solids contain some amount of solute after every extraction. Statement 2: Single-stage batch extractor – Used in labs and not on large scale as a solvent is continuously subjected to heat.

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Statement 1: Batch crystallizers are used for jaggery. Statement 2: Particle size is controlled by stirring and scraping the concentrate from the vessel for better heat transfer.

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Statement 1: In counter-current extraction, equilibrium is reached at every stage. Statement 2: Right angled triangle method also called a difference point method is used to calculate the ideal number of stages for extraction.

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Which of the following factors is a genuine criterion for the selection of a filter press?

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