Answer:
560K
Step-by-step explanation:
For the question above we apply Charles law.
Charles law states that at constant pressure, the Volume of an ideal gas is directly proportional to it's temperature in Kelvin(Absolute Temperature).
Charles law is represented mathematically by:
V₁/ T₁ = V₂/T₂
Where V₁= 10.0 liters , T₁ = 280K
V₂= 20.0 litres, T₂ = ?
Therefore, 10/280 = 20/T₂
Cross multiplying
10× T₂= 280×20
T₂= (280×20)÷ 10
T₂ = 560K
The new temperature is 560K.