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The hardness of 10,000 Litres of hard water sample was completely removed by passing it through a zeolite softener. The zeolite softener required 5000litres of NaCl solution containing 1170 mg of NaC
engineering chemistry updated 22 months ago by Krishna_Agrawal • 2.6k
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phase rule problem
engineering chemistry updated 22 months ago by DevarenjiniP • 3.1k
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Draw a neat labelled diagram and explain how is it possible to obtain electricity from geothermal energy.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Explain construction and working of a solar cell.
engineering chemistry updated 2.1 years ago by kunalpathare1119 • 260
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Outline the chemical reactions involved in the lime-soda method of softening water.
engineering chemistry updated 2.0 years ago by Shaik_Sumiya_34 • 40
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chemistry analyze the amount of softener
engineering chemistry updated 22 months ago by Krishna_Agrawal • 2.6k
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Numerical on analysis of coal
engineering chemistry updated 23 months ago by Krishna_Agrawal • 2.6k
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Draw a neat diagram and explain working of photovoltaic cell.
engineering chemistry updated 2.1 years ago by kunalpathare1119 • 260
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State the principle and working of photovoltaic cell used for solar energy.
engineering chemistry updated 2.0 years ago by Shaik_Sumiya_34 • 40
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Define flash point and fire point. Give its significance.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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What are the drawbacks of natural rubber.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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454
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List the applications of carbon nanotubes.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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588
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What is activated sludge? Explain the method with a flow-sheet diagram.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Give the preparation, properties and uses of (i) PMMA (ii) Silicone rubber (iii) BunaS.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Explain the functions of the following constituents in the compounding of plastic (any Two) (i) Plastic (ii) Lubricants (iii) Stabiliser.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Write brief notes on any two methods of disinfecting municipal water with reactions.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Explain with a neat diagram, the zeolite process of water softening including the following points. i) Principle ii) Softening and regeneration reactions iii) Process iv) Advantages
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Explain the principle of EDTA method.
engineering chemistry updated 7.4 years ago by teamques10 ★ 61k
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10k
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What is the total hardness of sample of water containing following impurities in $mg/lCa(HCO3)2=162$ , CaCl2=22.2 , NaCl=20 , $MgCl_2=95$
engineering chemistry updated 7.4 years ago by teamques10 ★ 61k
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323
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Describe a moulding method suitable for thermoplastic resins.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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57k
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Define phase, component and degree of freedom.
engineering chemistry updated 14 months ago by yashbeer ★ 11k
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Short notes on $-$ a) reverse osmosis b) electro dialysis c) ultra-filtration
engineering chemistry updated 7.4 years ago by teamques10 ★ 61k
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279
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Distinguish between thermoplastic and the thermosetting resins.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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807
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Name any four additives in blended oil and give two examples of each.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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Draw a neat diagram of rotary kiln in the manufacture of portland cement and mention the reactions in each zone.
engineering chemistry updated 2.5 years ago by teamques10 ★ 61k
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