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_________ are large air bubbles separated by thin films of liquid with thicknesses in the range of those of colloids.

_________ are large air bubbles separated by thin films of liquid with thicknesses in the range of those of colloids. Correct Answer Foams

Foam, in physical chemistry, a colloidal system i.e., a dispersion of particles in a cont. medium into which the particles are gas bubbles and the medium is a liquid. They decrement the rate of water drainage at the junction of 3 gas bubbles, the plateau borders.

Related Questions

Films can be used as an effective pedagogic tool in the social science classrooms because A. films can bring the world into the classroom. B. films inspire us with the power of discovering the unseen and the unheard contexts. C. films bring stories, voices and images that in life may be far removed from us. D. films are objective medium which can encourage learners to frame their views in a singular manner. Choose the correct option.
Read the given statement and conclusion carefully and decide which of the conclusion(s) logically follows from the statement(s). Statements: The changing times in Indian cinema are testimony that big-budget films of stars (actors) are doing poorly and many small budget themed films are doing good business. Conclusions: (i) Small-budget films have been extremely successful because of their narrative content without giving much importance to the selection of stars. (ii) Big budget films have failed at the box office due to the selection of big stars (starcast). 
S1: Films developed from the silent stage to the talkie stage with a tremendous mass appeal.
P: Film makers of those days used film media to portray our struggle for freedom.
Q: The thirties and forties were decades of tremendous social, political and cultural upheavals.
R: That is what 'Alam Ara' did to the delirious delight of the audience and thus triggered off a revolution.
S: In the turbulent thirties, the silent Indian films began to talk, sing and dance.
S6: Extolling the virtues of bravery and making patriotic films was the order of the day.

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As the fluidization velocity increases, large bubbles break up into several smaller ones and when this break-up process overcomes the coalescence of the bubbles, oscillations of the pressure drop become smaller. This is the moment when _________ regime occurs.
Small bubbles are more shear sensitive than large bubbles.
Colloids are classified into lyophobic and lyophilic colloids.
Colloids are classified into multi-molecular, macro-molecular and associated colloids.
In a wetted-wall tower, an air-H2S mixture is flowing by a film of water which is flowing as a thin film down a vertical plate. The H2S is being absorbed from the air to the water at a total pressure of 1.50 atm abs and 30oC. The value of kc of 9.567×10-4 m/s has been predicted for the gas-phase mass-transfer coefficient. At a given point the mole fraction of H2S in the liquid at the liquid-gas interface is 2.0×10-5 and pA of H2S in the gas is 0.05 atm. The Henry’s law equilibrium relation is pA(atm) = 609xA (mole fraction in liquid). Calculate the rate of absorption of H2S.
The accompanying image shows a large cube made of dark and white small sugar cubes. Small cubes of the diagonally arranged row of the bottom surface of the large cube, small cubes of the row with one face on the right-hand surface of the large cube, small cubes of the row with one face on the front surface of the large cube, and small cubes of the column with one face on the top of large cube surface are all dark. Select the number of small white cubes of the large cube.
Five theatres PVR, DT, Chanakya, Regal and Maratha Mandir screen two out of ten films based on Romance, Thriller, Horror, Adventure, Children, Drama, Documentary, History, Religion and Cartoon. Each theatre exhibits only two films and allots two different slots for them, wherein slot I is before slot II. Chanakya screens a Horror film in the first slot, while Maratha Mandir exhibits a Historical film in the second slot. DT exhibits a thriller film in the second slot and Regal exhibits a documentary film. Drama must be exhibited only in the second slot. The children’s film and the Cartoon film are exhibited in the same theatre while the religious film is not in the first slot. If Chanakya screens a Religious film in its second slot, then which of the films can be screened by theatre Regal?