The pressure of interstellar space is about atm. If the temperature is 3 K, how many molecules are p — States of Matter and Gaseous State Chemistry Question
Question
The pressure of interstellar space is about $4.0 \times 10^{-22}$ atm. If the temperature is 3 K, how many molecules are present per litre? ($R = 0.08 \text{ l-atm/K-mol}$)
Answer: D
💡 Solution & Explanation
N = P V Na / R T = (4e-22 * 1 * 6.022e23) / (0.08 * 3) = 240.88 / 0.24 = 1003. Closest is 1002. Therefore, correct answer is D.
💬Ask on WhatsApp →
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes