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Chemistry

What is STP in chemistry?

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April 16, 2016 3:26AM

STP stands for standard temperature and pressure. Because gases occupy different volumes at different temperatures and pressures, it is necessary to define a set of conditions that can be considered standard.

At STP:

  • The temperature is 0°C or 273 K
  • The pressure is 1 atmosphere or 760 mmHg or 760 torr
  • One mole of any gas occupies 22.4 L of volume (molar volume)