Answer: Option (a) is the correct answer.
Explanation:
Transmutation involves the conversion of one chemical element into another chemical element. This change occurs when an element or isotope passes through a number of reactions. It is a natural process and happens when there is a radioactive decay.
Hence, it is also a nuclear change as it occurs when there is a change in the nucleus of an atom. As this change can be due to the nuclear decay so as a result there will be some change in energy also. It is the process where one element converts into another using bombardment with high energy particles.
Thus, we can conclude that transmutation involves is a nuclear change.
Answer: There are 20 protons neutrons in the atom
Answer:
![\boxed{\text{25. 20 L; 26. 49 K}}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Ctext%7B25.%2020%20L%3B%2026.%2049%20K%7D%7D)
Explanation:
25. Boyle's Law
The temperature and amount of gas are constant, so we can use Boyle’s Law.
![p_{1}V_{1} = p_{2}V_{2}](https://tex.z-dn.net/?f=p_%7B1%7DV_%7B1%7D%20%3D%20p_%7B2%7DV_%7B2%7D)
Data:
![\begin{array}{rcrrcl}p_{1}& =& \text{100 kPa}\qquad & V_{1} &= & \text{10.00 L} \\p_{2}& =& \text{50 kPa}\qquad & V_{2} &= & ?\\\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Brcrrcl%7Dp_%7B1%7D%26%20%3D%26%20%5Ctext%7B100%20kPa%7D%5Cqquad%20%26%20V_%7B1%7D%20%26%3D%20%26%20%5Ctext%7B10.00%20L%7D%20%5C%5Cp_%7B2%7D%26%20%3D%26%20%5Ctext%7B50%20kPa%7D%5Cqquad%20%26%20V_%7B2%7D%20%26%3D%20%26%20%3F%5C%5C%5Cend%7Barray%7D)
Calculations:
![\begin{array}{rcl}100 \times 10.00 & =& 50V_{2}\\1000 & = & 50V_{2}\\V_{2} & = &\textbf{20 L}\\\end{array}\\\text{The new volume will be } \boxed{\textbf{20 L}}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Brcl%7D100%20%5Ctimes%2010.00%20%26%20%3D%26%2050V_%7B2%7D%5C%5C1000%20%26%20%3D%20%26%2050V_%7B2%7D%5C%5CV_%7B2%7D%20%26%20%3D%20%26%5Ctextbf%7B20%20L%7D%5C%5C%5Cend%7Barray%7D%5C%5C%5Ctext%7BThe%20new%20volume%20will%20be%20%7D%20%5Cboxed%7B%5Ctextbf%7B20%20L%7D%7D)
26. Ideal Gas Law
We have p, V and n, so we can use the Ideal Gas Law to calculate the volume.
pV = nRT
Data:
p = 101.3 kPa
V = 20 L
n = 5 mol
R = 8.314 kPa·L·K⁻¹mol⁻¹
Calculation:
101.3 × 20 = 5 × 8.314 × T
2026 = 41.57T
![T = \dfrac{2026}{41.57} = \textbf{49 K}\\\\\text{The Kelvin temperature is }\boxed{\textbf{49 K}}](https://tex.z-dn.net/?f=T%20%3D%20%5Cdfrac%7B2026%7D%7B41.57%7D%20%3D%20%5Ctextbf%7B49%20K%7D%5C%5C%5C%5C%5Ctext%7BThe%20Kelvin%20temperature%20is%20%7D%5Cboxed%7B%5Ctextbf%7B49%20K%7D%7D)
Answer:
False
Explanation:
The values of the principal quantum number range from 1- infinity. This implies that there is no such thing as an energy level with n=0.
Hence this can not be an acceptable set of quantum numbers when n=0.