Answer:
concentration of Mg ion = 0.0122 g/L
Explanation:
Given data;
initial concentration of Magnesium in water is 40 mg/l
concentration of
we have dissociation reaction Magnesium dioxide
from above reaction we can conclude
concentration of
Mass of magnesium ion is calculated as = Mg mole * molar mass of magnesium
concentration of Mg ion = 0.0005*24.305 g/mol = 0.0122 g/L
Answer:
Resulting heat generation, Q = 77.638 kcal/h
Given:
Initial heat generation of the sphere,
Maximum temperature,
Radius of the sphere, r = 0.1 m
Ambient air temperature, = 298 K
Solution:
Now, maximum heat generation, is given by:
(1)
where
K = Thermal conductivity of water at
Now, using eqn (1):
max. heat generation at maintained max. temperature of 360 K is 24924
For excess heat generation, Q:
where
Now, 1 kcal/h = 1.163 W
Therefore,