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Question:
a) Briefly compare the windrow method v/s the aerated static pile composting
b) Explain, with the help of a diagram, the role of aeration in turned windrow composting
c) Around 20 kg of poultry manure is composted with 10 kg of sawdust. Find the resulting moisture content and C.N ratio.
Data: Moisture Content of manure: 50% and sawdust: 10%, Nitrogen % of manure = 2.5% and of sawdust =0.1%, both on dry mass basis C/N ratio of manure is 6 and sawdust 200.
Q. Describe the Half -Life property of radioactive decay? Ans. The decay of a nucleus is a random event. It is impossible to predict which nucleus will decay and when.
THermodynamic free enrgy is the amount of work a thermodynamic system can perform. The concept is useful in the thermodynamics of chemical or thermal processes in engineering and
Why is geometrical isomers not possible in tetrahedral complexes having two different types of unidentate ligands? Solution) Tetrahedral complexes do not show geometrical isomeri
(a) How is aniline obtained from benzene? (b) Why are the secondary amines more basic than primary amines? Describe. (c) Write the complete chemical reactions for the convers
1)Aniline is more basic because of the strong electron withdrawing effect of the carbonyl oxygen on the amide of acetanilide. 2)Aniline is more basic because of the strong electro
The interatomic distances in H 2 and Cl 2 molecules are 74 and 198 pm respectively. The bond length of HCl is : (1) 272 pm (2) 1
Hydrocarbons are compounds made completely out of Hydrogen and Carbon.
Q. Briefly explain Nuclear Power? Ans. As an energy source, nuclear power is an alternative to fossil fuels. Controlled nuclear chain reactions are used to generate elect
Two solutions are prepared using the same solute: Solution A: 0.27g of the solute dissolves in 27.4g of t-butanol. Solution B: 0.23g of the solute dissolves in 24.8g cyclohexane. W
An example for trihydric phenols
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