Question

Calculate the volume of 470cm³ of
gas at 27°C, would occupy at 22°C
at constant pressure.​

Answer 1

Solution :

As per the given data,

V₁ = 470 cm³ = 0.470 L (dm³)

In order to convert cm³ into dm³(L) divide by 1000

T₁ = 273 + 27 = 300 K

T₂ = 273 + 22 = 295 K

As per the ideal gas equation,

• PV = nRT

Here,

• P = pressure
• V = volume
• n = moles
• R = universal gas constant
• T = temperature

On rearranging,

⇒ V/T = nR/P

All the terms on the R.H.S are constant

⇒ V/T = constant

From this, we can conclude that,

• V ∝ T

Charles Law - This law states that the volume of an ideal gas is directly proportional to its temperature at constant pressure.

Hence,

⇒ V₁ / T₁ = V₂ / T₂

⇒ V₂ = V₁ x T₁ / T₂

Now let's substitute the values,

⇒ V₂ = 0.470 x 300/295

⇒ V₂ = 141/295

⇒ V₂ = 0.477 L (dm³)

Answer 2

Answer:

in the following attachment s is your answer