Bernardemily2236 Bernardemily2236
  • 12-02-2020
  • Chemistry
contestada

The volume of 350. mL of gas at 25°C is decreased to 155 mL at constant pressure. What is the final temperature of the gas?

Respuesta :

Mergus Mergus
  • 13-02-2020

Answer:

The final temperature of the gas is 132.04 K .

Explanation:

At constant pressure and number of moles, using Charles's law  

[tex]\frac {V_1}{T_1}=\frac {V_2}{T_2}[/tex]

Given ,  

V₁ = 350 mL  

V₂ = 155 mL

T₁ = 25 °C

T₂ = ?

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (25 + 273.15) K = 29815 K  

Using above equation as:

[tex]\frac{350}{298.15}=\frac{155}{T_2}[/tex]

[tex]T_2=\frac{155\cdot \:298.15}{350}\ K[/tex]

The final temperature of the gas is 132.04 K .

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