Answer: SMALLEST is lithium
LARGEST is Fluorine
Explanation:
Answer:
328.1 K.
Explanation:
- To calculate the no. of moles of a gas, we can use the general law of ideal gas: <em>PV = nRT</em>.
where, P is the pressure of the gas in atm.
V is the volume of the gas in L.
n is the no. of moles of the gas in mol.
R is the general gas constant,
T is the temperature of the gas in.
- If n is constant, and have two different values of (P, V and T):
<em>P₁V₁T₂ = P₂V₂T₁</em>
<em></em>
P₁ = 1.0 atm (standard P), V₁ = 72.1 L, T₁ = 25°C + 273 = 298 K (standard T).
P₂ = 93.6 kPa = 0.924 atm, V₂ = 85.9 L, T₂ = ??? K.
<em>T₂ = P₂V₂T₁/P₁V₁ = </em>(0.924 atm)(85.9 L)(298 K)/(1.0 atm)(72.1 L) <em>= 328.1 K.</em>
<em></em>
Answer:
a message sent by telegraph and then delivered in written or printed form, used in the UK only for international messages since 1981
Answer : The average kinetic energy is, ![1.04742\times 10^{-20}J](https://tex.z-dn.net/?f=1.04742%5Ctimes%2010%5E%7B-20%7DJ)
Explanation :
The formula for average kinetic energy is:
![K.E=\frac{3}{2}kT](https://tex.z-dn.net/?f=K.E%3D%5Cfrac%7B3%7D%7B2%7DkT)
where,
k = Boltzmann’s constant = ![1.38066\times 10^{-23}J/K](https://tex.z-dn.net/?f=1.38066%5Ctimes%2010%5E%7B-23%7DJ%2FK)
T = temperature = ![233^oC=273+233=506K](https://tex.z-dn.net/?f=233%5EoC%3D273%2B233%3D506K)
Now put all the given values in the above average kinetic energy formula, we get:
![K.E=\frac{3}{2}\times (1.38\times 10^{-23}J/K)\times (506K)](https://tex.z-dn.net/?f=K.E%3D%5Cfrac%7B3%7D%7B2%7D%5Ctimes%20%281.38%5Ctimes%2010%5E%7B-23%7DJ%2FK%29%5Ctimes%20%28506K%29)
![K.E=1.04742\times 10^{-20}J](https://tex.z-dn.net/?f=K.E%3D1.04742%5Ctimes%2010%5E%7B-20%7DJ)
Therefore, the average kinetic energy is, ![1.04742\times 10^{-20}J](https://tex.z-dn.net/?f=1.04742%5Ctimes%2010%5E%7B-20%7DJ)
He set up his periodic table by the atomic mass