90. A rectangular tank, with vertical sides, contains water to a depth of 30 cm. On a cold day, the water is initially 0 °C. The top 3.0 cm of it freezes into ice at 0 °C. Assume that half of the latent heat given out by the ice goes to heating the remainder of the water. What is now the temperature of the water below the ice? (The specific latent heat of fusion of water is 330 kJ kg- and the specific heat capacity of water is 4.2 kJ kg'K-') A. 3.9 °C B. 4.4 °C C. 7.9 °C D 8.7 °C

what applications does packed column have?

What is meant by a pinch point?

Explain in detail about hydration and setting times of cement

7 ---centrifuge is the most suitable for separation of non-friable crystals. Tubular bowl Disc-bowl Perforated horizontal basket continuous Suspended batch basket

Agitated Vessel advantages

5. Which technique(s) is useful for generating a three dimensional tissue scaffold: Solvent casting b. 3-D printing a. c. Etching d. Solvent casting-particulate leaching e. Cross-linking f. None of the above g. All of the above

The heat capacity (Cp) of an halogenated organic compound, chloroform is given by the follow equation. Equation (1) Cp (J/mol K) = 19.8 +0.22 T – 0.00026 T² (a) Obtain a new equation that uses T in Fahrenheit (b) Calculate the Cp of chloroform at 300 K using Equation (1) (c) Calculate the Cp of chloroform at 80 °F using the equation you derived in (a)

Convert 8.43cm to millimeters