Because its easier for scientists outside of the United States to understand your data.
Answer:
Because the particles in solids are very close together making the particles tightly packed.
Explanation:
This is a Charles' Law problem: V1/T1 = V2/T2. As the temperature of a fixed mass of gas decreases at a constant pressure, the volume of the gas should also decrease proportionally. Here, we are given the new volume of the gas after cooling, and we want to determine to what temperature the gas was cooled.
To use Charles' Law, the temperature must be in Kelvin (x °C = x + 273.15 K). We want to solve Charles' Law for T2, which we can obtain by rearranging the equation into T2 = V2T1/V1. Given V1 = 130 L, T1 = 250 °C (523.15 K), and V2 = 85 L:
T2 = (85 L)(523.15 K)/(130 L) = 342 K or 68.9 °C. If sig figs are to be considered, since all the values in the question are given to two sig figs, the answer to two sig figs would be either 340 K or 69 °C.
Nope. Only electrons take part in the "chemical reaction".
But if you collide two particles at the speed of light or close to it, then protons, neutrons and in fact other subatomic particles also take part in the reaction. PS: this is not a chemical reaction, it is called nuclear reaction.
You need to accelerate particles at the ultimate speed because protons and neutrons are strongle held inside nucleus because of "strong force"