Barometer was invented by _______?
Correct answer: B. Torricelli
- A. Pascal
- B. Torricelli
- C. Newton
- D. Huygen
Explanation
Evangelista Torricelli invented the mercury barometer by showing that atmospheric pressure could support a column of mercury. Pascal later used barometers to study pressure variation with height, so Pascal is the most likely mistaken choice.
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About Standard Temperature and Pressure
Standard temperature and pressure provide reference conditions for gas calculations: 0°C or 273 K and, in the usual school convention, 1 atm pressure. Questions use these conditions to relate pressure, volume, temperature and amount of gas, including the molar volume of an ideal gas, about 22.4 dm³.
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