0.20 g of carbon dioxide at 25 °C has 844 torr pressure. After heating, the pressure increases to 2.24 atm. What is the temperature?
Correct answer: A. 601 K
- A. 601 K
- B. 373 K
- C. 555 K
- D. 327 K
Explanation
According to the ideal gas equation PV = nRT;we can say that pressure is directly proportional to temperature.In this case, when pressure is increased from 844 torrs (1.11 atm) to 2.24 atm, it is almost doubled.Hence the temperature should also double.As 601 K is almost twice the initial temperature of 25°C (298 K), it is the answer.{Don't forget to convert the units into similar ones to get the answer}
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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.
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