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At room temperature, two identical rigid containers are separated and filled up with the equivalent to 200 mol of Ar in one, and 200 mol of Oz in the other. Select the INCORRECT statement. Marks a. If the temperature is increased simultaneously to 60°C, both containers will show an identical surge of internal pressure. O b. If the same amount of an inert gas is added to each container, both containers will show an identical surge of internal pressure. O c. The density of the gases will be different. O d. For both gases to have the same mean velocity, we would need to cool down the container with O2. e. The container full of oxygen is heavier than the one full of argon.
The element lutetium has two naturally occurring isotopes: 115 Lu and 17@Lu. The T6 Lu isotope has a mass of 174.940 amu and is 97.41% abundant. Which one statement about lutetium is FALSE? O a. The natural abundance of 176Lu is 2.59%. O b. The nucleus of every lutetium in the universe contains 71 protons. O c. The atomic mass of 176Lu is 176.098 amu. O d. The average atomic mass of lutetium is 175.32 amu O e. The nucleus of every 176Lu atom in the universe contains 105 neutrons.
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