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Standard condition STP refer to a gas at ___________________?

Correct answer: D. all of the aboveTracking Hyperlocal Weather Forecasts

  • A. 76cm 0°C
  • B. 760mm 273K
  • C. 1atm 273K
  • D. all of the aboveTracking Hyperlocal Weather Forecasts

Explanation

These are equivalent descriptions of standard temperature and pressure: 76 cm Hg = 760 mm Hg = 1 atm, and 0°C = 273 K. Therefore, options a, b and c all describe STP, making "all of the above" correct. A student may select only 1 atm and 273 K because that is the most familiar form, overlooking the equivalent mercury-pressure form.

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About Thermal Equilibrium and Heat

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