Answer : The molar heat of solution for the salt is 452.9 kJ/mole
Explanation :
First we have to calculate the heat of solution.
where,
q = heat of solution = ?
c = specific heat of water = specific heat of solution =
m = mass of solution = 107.093 g
- Mass of solution = Mass of water + Mass of salt
- Mass of solution = 100.000 g + 7.093 g = 107.093 g
= change in temperature =
Now put all the given values in the above formula, we get:
Now we have to calculate the molar heat of solution for the salt, in kJ/mol.
where,
= molar heat of solution = ?
q = heat required = 8.456 kJ
m = mass of salt = 7.093 g
Molar mass of salt = 379.984 g/mol
Therefore, the molar heat of solution for the salt is 452.9 kJ/mole
Answer:
35.625° C
Explanation:
See attachment
a) Final temperature is 35.625° C
b) 0°
Answer:
Explanation:
I can use insulated materials to cover the doors, windows and floors or I use quilted blankets to cover the doors, windows and the floor, this will reduce the sound coming in the room and the sound escaping out of the room.
I can possibly use carpet or floor mats on the floor, especially in front of the door to cover the crack that may be underneath it.
Answer:
Change in momentum is
Solution:
The momentum of any body is the product of its mass and the velocity associated with the body and is generally given by:
Now, as per the question:
Mass of the car, M = 1500 kg
The velocity in the east direction,
The velocity in the north direction,
Now, the momentum of the car in the east direction:
Now, the momentum of the car in the north direction:
Change in momentum is given by:
Now,
(Since, )
Liquids state than in the solid state because when it is solid the particals cant move as much than in the liquid state