Question

What is true at STP?. . A) Temperature is 300 Kelvin.. . B) One mole of gas occupies a volume of 22.4 liters.. . C) Pressure is 101 atmospheres.. . D) Volume is 24 liters.

Answer 1

B. One mole of gas occupies a volume of 22.4 liters

Answer 2

Answer: B) One mole of gas occupies a volume of 22.4 liters

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number $6.023\times 10^{23}$ of particles.

Standard condition of temperature (STP)  is 273 K and atmospheric pressure is 1 atmosphere respectively.  

1 mole of every gas occupy volume at STP = 22.4 L

Thus at STP one mole of gas occupies a volume of 22.4 liters.