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CBSE Class 12-science Answered

Why ice cream seller add salt to ice around cones and not ice alon why ? I have searched a lot about the reason but I can't understand any reason? Why adding of salt makes water colder
Asked by govtsecschoolnayaganv051 | 12 Jun, 2019, 11:01: AM
answered-by-expert Expert Answer

In case of ice cream when salt is added to ice that surrounds a container with the liquid ice cream mixture, the freezing point of the ice drops and it begins to melt. This transfers heat from the surrounding environment that freezes the ice cream.

 
Answered by Ramandeep | 12 Jun, 2019, 04:58: PM

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CBSE 12-science - Chemistry
The boiling point of benzene is 353.23k. When 1.80g of a non-volatile solute was dissolved in 90g of benzene , the boiling is raised to 345.11k. Calculate the molar mass of solute (kb=2.53kg mol-1)
Asked by varinder2149 | 10 Dec, 2023, 08:21: PM
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CBSE 12-science - Chemistry
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Asked by vekariyaparth61 | 16 May, 2022, 04:33: PM
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CBSE 12-science - Chemistry
Molal elevation constant for benzene is 2.5K/m. A solution of some organic substance in benzene boils at 0.126°C higher than benzene. What is the molality of solution?  
Asked by goyalpavitarta | 03 May, 2021, 01:27: PM
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CBSE 12-science - Chemistry
Boiling point of water at 750mm of hg is 99.63°C. how much sucrose is to be added to 500g of water such that it boils at 100°C.​​​​​​​
Asked by goyalpavitarta | 03 May, 2021, 01:25: PM
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CBSE 12-science - Chemistry
2.00g of non-electolyte solute dissolved in 100g of benzene, lowered the freezing point of benzene by 0.30K. find the molar mass of solute.
Asked by goyalpavitarta | 03 May, 2021, 01:20: PM
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CBSE 12-science - Chemistry
3gm
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Asked by purvi.naik21 | 17 Aug, 2020, 11:17: PM
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CBSE 12-science - Chemistry
What is colligative property
Asked by sshashu993 | 25 Jul, 2020, 08:02: AM
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CBSE 12-science - Chemistry
Explain B.pt.elevation and F.pt.depression?
Asked by anukritisingh8103.bmps | 15 Jul, 2020, 05:52: PM
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CBSE 12-science - Chemistry
To 500 cm3of water ,3×10^-3 of acetic acid is added .if 23 percent is dissociated  what will be the depression in freezing pt given k1 is 1.86K kg /mol 
Asked by sharmasherryal | 25 May, 2020, 09:54: AM
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CBSE 12-science - Chemistry
two liquids a and b at 120C and 160C which of these liquids has at higher vapour pressure at 90C
Asked by panthpreet0221 | 06 May, 2020, 10:41: AM
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