Answer:
The sand bath spreads the heat out so that the flask is heated evenly. This reduces the chance of the flask breaking and ensures that there are no hot spots in the reaction mixture which could lead to excessive charring,
Explanation:
Neutral water<span> has the same concentration of Hydrogen ions which are also called the H+ and the Hydroxide ions, which also could be referred to as OH-. A neutral water is considered to have a pH level of 7 wherein it stands between the acid level and the base level which makes it suitable for human consumption.</span>
Answer :
(a) The speed in Km/hr is, ![10.8\times 10^8Km/hr](https://tex.z-dn.net/?f=10.8%5Ctimes%2010%5E8Km%2Fhr)
(b) The speed in mi/min is, ![1.125\times 10^7mi/min](https://tex.z-dn.net/?f=1.125%5Ctimes%2010%5E7mi%2Fmin)
Solution :
The speed of light = ![3\times 10^8m/s](https://tex.z-dn.net/?f=3%5Ctimes%2010%5E8m%2Fs)
(a) Convert speed of light from m/s to Km/hr
![(3\times 10^8m/s)\times \frac{3600}{1000}=10.8\times 10^8Km/hr](https://tex.z-dn.net/?f=%283%5Ctimes%2010%5E8m%2Fs%29%5Ctimes%20%5Cfrac%7B3600%7D%7B1000%7D%3D10.8%5Ctimes%2010%5E8Km%2Fhr)
conversions used :
(1 Km = 1000 m)
(1 hr = 3600 sec)
(b) Convert speed of light from m/s to mi/min
![(3\times 10^8m/s)\times \frac{60}{1600}=1.125\times 10^7mi/min](https://tex.z-dn.net/?f=%283%5Ctimes%2010%5E8m%2Fs%29%5Ctimes%20%5Cfrac%7B60%7D%7B1600%7D%3D1.125%5Ctimes%2010%5E7mi%2Fmin)
conversions used :
![(1m=\frac{1}{1609.34}mile)\\\\(1sec=\frac{1}{60}min)](https://tex.z-dn.net/?f=%281m%3D%5Cfrac%7B1%7D%7B1609.34%7Dmile%29%5C%5C%5C%5C%281sec%3D%5Cfrac%7B1%7D%7B60%7Dmin%29)
Temperature can be calculated using the average kinetic energy. The ideal gas equation is being related to the average molecular kinetic energy.
<span>
PV = nRT
</span><span>PV = (2/3) N(0.5mv^2)
</span><span>
By substituting and simplifying, we eventually get the equation.
</span><span>
KE = (3/2)RT</span>
T = 3866 x 2 / 8.3145 x 3 = 309.98 K or 36.83 degrees Celsius