The motion of molecules in a ice cube are so packed together that they can't move freely like molecules in liquids and gases
Answer : The expected coordination number of NaBr is, 6.
Explanation :
Cation-anion radius ratio : It is defined as the ratio of the ionic radius of the cation to the ionic radius of the anion in a cation-anion compound.
This is represented by,

When the radius ratio is greater than 0.155, then the compound will be stable.
Now we have to determine the radius ration for NaBr.
Given:
Radius of cation,
= 102 pm
Radius of cation,
= 196 pm

As per question, the radius of cation-anion ratio is between 0.414-0.732. So, the coordination number of NaBr will be, 6.
The relation between radius ratio and coordination number are shown below.
Therefore, the expected coordination number of NaBr is, 6.
Answer:
Homeostasis is defined as the process by which the internal body system maintains a suitable environment for its proper functions and survival.
When a person temperature drops a signal is sent to the brain which results in a reflex action being observed. The shiver makes the individual warmer and helps in the regulation of the body heat.
The enthalpy of the reaction is the amount of energy absorbed or lost in the reaction. The enthalpy of the final reaction is -113.4 kJ.
<h3>What are intermediate reactions?</h3>
The intermediate reactions are the small reactions that takes place in order to achieve the final reaction product.
The given intermediate reactions are:

The final reaction to be achieved is:

The second reaction is reversed in order to achieve the final reaction product.
The enthalpy of the final reaction (
) is given as:

Substituting the values of enthalpy:

The final enthalpy of the reaction is -113.4 kJ. Thus, option B is correct.
Learn more about enthalpy of reaction, here:
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Ignition transformer
1.
Weight of the transformer is more.
2.
Voltage output of the transformer is from 10,000 volts
to 14,000 volts.
3.
Due to lower voltage output, fuel vaporization and
ignition will be slow.
4.
When there is a drop in voltage supply, the transformer
gets affected.
5.
Consumption of electricity is more.
Solid state igniter.
1.
Igniter weighs very light
2.
Igniter giver voltage output in the range of 14,000
volts to 20,000 volts
3.
Higher voltage output leads to faster vaporization of
fuel and ignition
4.
Very small affect is observed when there is a voltage
drop.
5.
Less electricity is consumed.