Science-AW462 Online Services
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...
Read More
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...
Read More
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...
Read More
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