Answer:
Average atomic mass of uranium= 237.98 amu.
Explanation:
Given data:
Abundance of U²³⁴ = 0.01%
Abundance of U²³⁵ = 0.17%
Abundance of U²³⁸ = 99.28%
Average atomic mass = ?
Solution:
Average atomic mass of uranium = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) +(abundance of 3rd isotope × its atomic mass) / 100
Average atomic mass of uranium= (234×0.01)+(235×0.71)+(238×99.28)/100
Average atomic mass of uranium= 2.34 + 166.85 + 23628.64 / 100
Average atomic mass of uranium= 23797.83 / 100
Average atomic mass of uranium= 237.98 amu.
True is the answer as at 100 Celsius water boils
We can apply Charles' law to find the change in the volume of the gas since the pressure in this chamber is kept constant.
Explanation:
- Charles' law states that at constant pressure, the change in temperature in a chamber will lead to change in its volume, which is to say that temperature and volume changes are directly proportional.
- The volume change here says that the gas expands as the temperature rises, give that the moles of the gas are constant.
- Hence, the equation could be, So, Charles' law can be directly applied to the situation to find or analyse the changing the variables such as volume and temperature