Calculate the decrease in temperature when 2.00 L at 20.0 ◦C is com- pressed to 1.00...

Question

Question

Calculate the decrease in temperature when 2.00 L at 20.0 ◦C is com-

pressed to 1.00 L.

Answer 1

Answer #1

According to Charles' law,

The volume,V of an ideal gas at constant pressure is directly proportional to its absolute temperature,T.

Let V₁ and T₁ be the initial volume and temperature of a gas and V₂ and T₂ be its final volume and temperature respectively.

Then,

Here,

V₁ = 2 L

V₂ = 1L

T₁ = 20 ℃ = 20 + 273 =293 K

T₂ = (V₁/V₂) × T₁

= (1/2) × 293

= 146.5 K

Decrease in temperature = T₁ - T₂

= 293 - 146.5

= 146.5 K

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Answer 2

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