Chemistry: An ideal gas is contained in a closed assembly with an initial pressure and temperature of 250 kN/m²and 75°C respectively, If the final volume of the systemis increased 1.8 times and the temperature drops to 18°C, determine the finalpressure of the gas.

c. They are good electrical conductors in all phases.Not all covalent compounds are good conductors because of the electrons they share. ...

An ideal gas is contained in a closed assembly - id12520852, PineappleDevil889

quanntwann2873

12.05.2021

The final pressure is 116kPa or 116kN/m^2

Explanation:

The combined gas equation is,

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

P_1 = initial pressure of gas = 250kN/m^2=250kPa (1kN/m^2=1kPa)

P_2 = final pressure of gas = ?

V_1 = initial volume of gas = v ml

V_2 = final volume of gas = $1.8\times v=1.8vml$

T_1 = initial temperature of gas = 75^0C=(75+273)K=348K

T_2 = final temperature of gas = 18^0C=(18+273)K=291K

Now put all the given values in the above equation, we get:

$\frac{250kPa\times v}{348}=\frac{P_2\times 1.8v}{291}$

P_2=116kPa

The final pressure is 116kPa or 116kN/m^2

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