<em>A glass flask of volume 400 cm³ is just filled with mercury at 0°C. How much mercury will overflow when the temperature of the system rises to 80°C.</em>
<em />
The volume of mercury that overflow is 5.376 cm³
<h3>Further explanation</h3>
Given
volume of glass = 400 cm³
Δt=80 °C - 0 °C = 80
Required
overflow volume
Solution
With an increase in the temperature of the substance, objects can expand. This expansion includes volume expansion.
Can be formulated
Find volume expansion of glass and mercury
Overflow :
ΔV mercury - ΔV glass : 5.76-0.384 = 5.376 cm³
When n=2 we have 8electrons, when n=4 l=1 we have 6electrons, when n=6 l=2 m-l=-1 qe have 1electron
Answer:
Option (B) It separates the hydrogen ion (H+) from the chlorine ion (Cl–).
Explanation:
The reaction above simply illustrate the dissociation of HCl when dissolve is water.
When HCl is dissolved in H2O, it will separate into the hydrogen ion, H+ and chloride ion Cl- as shown below
HCl —> H+ + Cl-
The water help to separate the H+ from the Cl-
<span>If 1 kj/mol is 0.239 kilocalories/ mol, then 941 kj/mol is 224.904 kcal/mol or 224904 cal/mol. They both are energy units. The joule is the International System unit. It is ultimately defined in terms of the meter, kilogram, and second. One calorie is the amount of heat required to raise the temperature of 1 gram of water by 1°C</span>
