Answer to Question #205754 in Chemistry for Deliciann Balkarra

Question

A sample of argon gas takes up 7 L and has a temperature of 250 K. After being heated to temperature 280K, what is the new volume? (Use V₁/T₁ = V₂/T₂ ... Show the appropriate formula and math work for credit.)

Answer 1

V₁ = 7 L

T₁ = 250 K

V₂ = unknown

T₂ = 280 K

P₁ = P₂ = const

Solution:

Since the pressure and amount of gas remain unchanged, Charles' Law can be used.

Charles' Law can be expressed as: V₁ / T₁ = V₂ / T₂

V₁T₂ = V₂T₁

To find the new volume, solve the equation for V₂:

V₂ = V₁T₂ / T₁

V₂ = (7 L × 280 K) / (250 K) = 7.84 L

V₂ = 7.84 L

Answer: 7.84 L is the new volume.