Answer: One technique we can use to measure the amount of heat involved in a chemical or physical process is known as calorimetry. Calorimetry is used to measure amounts of heat transferred to or from a substance. To do so, the heat is exchanged with a calibrated object (calorimeter). The change in temperature of the measuring part of the calorimeter is converted into the amount of heat (since the previous calibration was used to establish its heat capacity). The measurement of heat transfer using this approach requires the definition of a system (the substance or substances undergoing the chemical or physical change) and its surroundings (the other components of the measurement apparatus that serve to either provide heat to the system or absorb heat from the system). Knowledge of the heat capacity of the surroundings, and careful measurements of the masses of the system and surroundings and their temperatures before and after the process allows one to calculate the heat transferred as described in this section.
Explanation:
Answer: a) 0.0144mol/L
b) 
Explanation:
Solubility product is defined as the equilibrium constant in which a solid ionic compound is dissolved to produce its ions in solution. It is represented as 
The equation for the ionization of the 
is given as:
We are given:
Solubility of = 
Molar Solubility of = 
1 mole of gives 1 mole of 
and 2 moles of 
ions
Solubility product of = ![[Pb^{2+}][Cl^-]^2](https://tex.z-dn.net/?f=%5BPb%5E%7B2%2B%7D%5D%5BCl%5E-%5D%5E2)
![K_{sp}=[0.0144][2\times 0.0144]^2](https://tex.z-dn.net/?f=K_%7Bsp%7D%3D%5B0.0144%5D%5B2%5Ctimes%200.0144%5D%5E2)
Thus the solubility product constant is
Channel proteins
Channel proteins are macromolecules that are embedded in plasma membranes of cells. Their function is to provide a pathway for molecules into and out of the cell, as the remaining parts of the membrane are impermeable. An example of such protein channels are those that are present to facilitate the diffusion of glucose.
kinetic energy kkkkkkkkkk
It moves up and away from the pan, with the hottest particles
