Pressure remain constant, at which temperature the volume of gas becomes twice of what it is at 0°C?
Correct answer: B. 546 K
- A. 546 °C
- B. 546 K
- C. 200°C
- D. 273 K
Explanation
At constant pressure, Charles's law states that volume is proportional to absolute temperature. The initial temperature is 0°C + 273 = 273 K, so doubling the volume requires 2 x 273 K = 546 K, equal to 273°C. Students may choose 546°C by doubling the Celsius value, but gas-law temperatures must be in kelvin.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Charles's Law
At constant pressure, the volume of a fixed mass of gas is directly proportional to its absolute temperature. Questions involve the Kelvin scale, the equation V₁/T₁ = V₂/T₂, volume-temperature graphs, and the need to distinguish Charles's law from Boyle's law, which relates pressure and volume.
Practise Gases
443 free Gases MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Charles's Law questions
Charle's Law was given by Jacques Charles in_______?
A gas occupies 300 cm3 at 27 degrees Celsius. At constant pressure, what volume will it occupy at 127 degrees Celsius?
Charles's law states that at constant pressure the volume of a fixed mass of gas is
The introduction of Kelvin scale in thermodynamic is according to_______________?
At constant pressure, the graph between V and T is:
"At constant pressure, the volume of gas is directly proportional to Absolute Temperature". This is known as: