MHT CET · Chemistry · States of Matter
Calculate the volume of gas at 1.25 atmosphere, if volume occupied by gas at 1 atmosphere and at same temperature is 25 mL .
- A 15 mL
- B 20 mL
- C 25 mL
- D 35 mL
Answer & Solution
Correct Answer
(B) 20 mL
Step-by-step Solution
Detailed explanation
According to Boyle's law,
\(P_1 V_1=P_2 V_2\)
(at constant n and T)
\(\therefore \quad \mathrm{V}_2=\frac{\mathrm{P}_1 \mathrm{~V}_1}{\mathrm{P}_2}=\frac{1 \mathrm{~atm} \times 25 \mathrm{~mL}}{1.25 \mathrm{~atm}}=20 \mathrm{~mL}\)
\(P_1 V_1=P_2 V_2\)
(at constant n and T)
\(\therefore \quad \mathrm{V}_2=\frac{\mathrm{P}_1 \mathrm{~V}_1}{\mathrm{P}_2}=\frac{1 \mathrm{~atm} \times 25 \mathrm{~mL}}{1.25 \mathrm{~atm}}=20 \mathrm{~mL}\)
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