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QUESTION 1
a) A kilogram of water at 20 ºC is placed in the freezer and its temperature is brought to 0 ºC.
Given: Specific heat of water = 4190 J/kgK;
Latent heat of fusion of water= 333000 J/kg
Calculate,
i) How much thermal energy was transferred, if n...

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# Science

## Physical and Chemical Change Analysis With Solution

Physical and Chemical Change Analysis With Solution
1.A water sample has the following composition data:
CaCo3= 100 ppm, MgCO3= 42 ppm, MgCl2= 95 ppm, CaSO4= 136ppm, MgSO4= 120ppm, CO2= 44ppm, NaAlO2= 164ppm.
Calculate the quantity of lime and soda required for softening of one million liter of water.
2.State whether each of the following r...

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## Balanced Chemical Equations Assignment Help With Solution

Balanced Chemical Equations Assignment Help
1. A 1.00-L bulb contains a sample of O2 at 25°C and 1.00 atm pressure. A second 1.00-L bulb contains a sample of CH4 at 25°C and 1.00 atm pressure. What is the ratio of the number of molecules of methane to the number of molecules of oxygen in each of the containers?
2.Methane (CH4) a natural gas), is stored...

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## OUM Science Assingment Help With Solution

OUM Science Assingment Help With Solution
QUESTION 1
a) A kilogram of water at 20 ºC is placed in the freezer and its temperature is brought to 0 ºC.
Given: Specific heat of water = 4190 J/kgK;
Latent heat of fusion of water= 333000 J/kg
Calculate,
i) How much thermal energy was transferred, if none of the ...

Read More