Chemistry, 18.07.2019 17:30 kiragor2545

Four liters of gas at standard pressure is compressed into 0.85 l gas cylinder. what is the new pressure

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Answers

4.70 atm

Solution:
According to Boyle's Law, " The Volume of a given mass of gas at constant temperature is inversely proportinal to the applied Pressure". Mathmatically the initial and final states of gas are given as,

P₁ V₁ = P₂ V₂ (1)

Data Given;
P₁ = 1 atm (standard pressure)

V₁ = 4 L

P₂ = ??

V₂ = 0.85 L

Solving equation 1 for P₂,

P₂ = P₁ V₁ / V₂

Putting values,

P₂ = (1 atm × 4 L) ÷ 0.85 L

P₂ = 4.70 atm

Result:
As the volume has decreased from 4 L to 0.85 L, therefore, pressure got increased from 1 atm to 4.70 atm.

Answer from: Quest

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

Answer from: Quest

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

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