number of particles are present in 3 moles.
The mole is a SI unit of measurement that is used to calculate the quantity of any substance.
1 mol =
We know that 1 mol =
so, 3 mol =
Thus, the number of particle is
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Breaking glass
Filtering a mixture
Burning paper
Answer:
D
Explanation:
Using Gay-Lussac's Law, we calculate that when the temperature of a gas increases from 320 K to 450 K, the pressure of the gas will increase from 1.5 atm to 2.1 atm, assuming the volume and the amount of gas remain constant.
To answer the question, we need to use the concept in physics called Gay-Lussac's Law. This law states that the pressure of a given amount of gas held at a constant volume is directly proportional to the Kelvin temperature. It's also important to remember that when we're dealing with gases, temperatures have to be in Kelvin for our calculations to work.
Given that, we know that the initial pressure (P1) is 1.5 atm, the initial temperature (T1) is 320K, and the final temperature (T2) is 450K. We want to find the final pressure (P2). According to Gay-Lussac's law, this can be calculated using the following equation: P1/T1 = P2/T2.
Thus, P2 = P1 * T2 / T1 = 1.5 atm * 450K / 320K = 2.1 atm.
So, the gas pressure will be 2.1 atm when the temperature increases from 320 K to 450 K, assuming that the volume and the amount of gas remain constant.
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Answer:
its a) the rate of decay is constant.