40.0 dm3 of an ideal gas at 250C and 750 mm Hg is expanded to 50.0 dm3. The pressure of the gas changed to 765 mm Hg. What is the temperature of the gas?
Correct answer: C. (298)(765)(50)/(750)(40)
- A. (298)(750)(50)/(40)(765)
- B. (298)(750)(40)/(50)(765)
- C. (298)(765)(50)/(750)(40)
- D. (40)(750)/(298)(50)(765)
Explanation
PV=nRTAccording to the ideal gas equation: PV = nRT. P1V1/T1=P2V2/T2 OrT2=P2V2T1/ P1V1 So T2 Should be solved as follows T2 =765*50*298/750*40
This question appeared on the ETEA MDCAT 2013 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Ideal Gas Equation
The ideal gas equation, PV = nRT, relates pressure, volume, amount and absolute temperature when gas particles are assumed to have negligible volume and no intermolecular forces. Applications include finding molar mass, density or an unknown gas variable, with careful use of Kelvin temperature and consistent units, and comparison with real-gas behaviour.
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 Ideal Gas Equation questions
The ideal gas equation is PV = nRT the symbol n in SI unit represent:
If the pressure and temperature (k) of two liters of CO2 are doubled the volume of CO2 would become:
A mixture of 50gH 2 and 50g He has a total pressure of 1.5atm. what is the partial pressure of H2 gas:
One way of expressing the equation of state for an ideal gas is by the equation pV = NkT. What do 'N' and 'K' represent respectively
A container is having mixture of gases, 20% ammonia, 30% hydrogen and 50% oxygen under 50 a.t.m pressure choose the correct partial pressure respectively
The equation used to describe the behavior of ideal gases under standard conditions is: