A vessel of 120 mL capacity contains a certain mass of a gas at 20^(@)C and 750 mm pressure. Thegas was transferred to a vessel whose volume is 180 mL. Calculate the pressure of the gas at 20^(@)C.

A vessel of 120 mL capacity contains a certain mass of a gas at 20^(@)

1.	A vessel of 120 mL capacity contains a certain mass of a gas at 20^(@)C and 750 mm pressure. Thegas was transferred to a vessel whose volume is 180 mL. Calculate the pressure of the gas at 20^(@)C.
Answer» <html><body><p></p>Solution :Since a gas completely fills the vessel in which it is contained, thesefore, we have : <br/> `V_(<a href="https://interviewquestions.tuteehub.com/tag/1-256655" style="font-weight:bold;" target="_blank" title="Click to know more about 1">1</a>)=120 mL,V_(<a href="https://interviewquestions.tuteehub.com/tag/2-283658" style="font-weight:bold;" target="_blank" title="Click to know more about 2">2</a>)=180 mL`,`P_(1)=750 mm, P_(2)=?mm` <br/> Since the temperature <a href="https://interviewquestions.tuteehub.com/tag/remains-621920" style="font-weight:bold;" target="_blank" title="Click to know more about REMAINS">REMAINS</a> <a href="https://interviewquestions.tuteehub.com/tag/constant-930172" style="font-weight:bold;" target="_blank" title="Click to know more about CONSTANT">CONSTANT</a>, therefore, by applying Boyle's Law, `P_(1)V_(1)=P_(2)V_(2)`</body></html>