At what new pressure $100 \mathrm{~mL}$ of a gas at pressure of $720 \mathrm{~mm}$ will occupy volume of $84…
At what new pressure $100 \mathrm{~mL}$ of a gas at pressure of $720 \mathrm{~mm}$ will occupy volume of $84 \mathrm{~mL}$
keeping temperature constant?
$857 \cdot 14 \mathrm{~mm}$
$712 \cdot 14 \mathrm{~mm}$
$816 \cdot 60 \mathrm{~mm}$
$604 \cdot 82 \mathrm{~mm}$
Solution
According to Boyle's law, $P_{1} V_{1}=P_{2} V_{2}$
$\therefore P_{2}=\frac{P_{1} V_{1}}{V_{2}}=\frac{720 \times 100}{84}=857.14 \mathrm{~mm}$