A cylinder contains 10 kg of gas at pressure 107 N/m2. The quantity of gas take out of cylinder, if final pressure is 2.5 x 106 N/m, is (assume the temperature of gas as constant) :
Answer & explanation
Correct answer: option 3
At constant temperature for the given volume of gas :
\(\frac{P_1}{P_2} = \frac{m_1}{m_2}\)
\(\Rightarrow \frac{10^7}{2.5*10^6} = \frac{10}{m_2}\)
\(\Rightarrow m_2 = \frac{2.5*10^6*10}{10^7}\) = 2.5 kg