Now it's time to make dinner. On the menu tonight are fried chicken, green beans and cornbread. (5) The first thing you need to
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Answer: The final pressure inside the tank will be B. 18.05 atm. Gay-Lussac's law is used to predict the changes in pressure or temperature of gases. According to this law, there is a direct relationship between pressure and temperature. As the temperature of gas increases, so, too, will the pressure increase and vice versa.
Further Explanation:
We use the mathematical expression of Gay-Lussac's law to find the final pressure in the tank:
It is very important to note that when using this equation, all temperatures must be expressed in Kelvin. The conversion from degree Celsius to Kelvin is:
In the problem, we are given the following information:
P(initial) = 23 atm
T(initial) = 293 K
P(final) = ?
T(final) = 230 K
Plugging in these values in the Gay-Lussac Equation, we get:
The tank was moved from a hotter to a cooler place. At cooler temperatures, gas particles move slower and frequency and strength of their collisions with each other and the wall of the containers decrease. This leads to a decrease in the pressure. Thus, the pressure drops from 23 atm to 18.05 atm when the tank is inside the freezer.
Learn More:
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Keyword: Gas Pressure, Temperature, Gay-Lussac's Law
Number of moles of Hydrogen gas produced = 2.5 moles
Given the balanced chemical equation,
This means, 1 mole of Mg and 2 moles of HCl gives 1 mole of Hydrogen gas.
Given that 2.5 moles of Magnesium is taken and an excess of Hydrochloric acid.
The mole ratio of Magnesium and Hydrogen = 1:1
Thus 2.5 moles of Magnesium with an excess of Hydrochloric acid will yield 2.5 moles of Hydrogen gas.
[By referring excess of HCl, we may assume that it contains at least 5 moles of HCl. Then only 2.5 moles of Mg will produce 2.5 moles of Hydrogen gas].
Learn more about the mole ratio at brainly.com/question/19099163
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