By what amount must the temperature of 200cm\(^{3}\) of Nitrogen at 27°C be increased to double the pressure if the final volume is 150cm\(^{3}\) (Assume id...

Assessment: JAMB UTME - Chemistry - 2019 Subject: Chemistry

Question 1 Report

By what amount must the temperature of 200cm\(^{3}\) of Nitrogen at 27°C be increased to double the pressure if the final volume is 150cm\(^{3}\) (Assume ideality)

150°C

177°C

75°C

120°C

Answer Details

Using the ideal gas law and equation:

\frac{P_{1} V_{1}}{T_{1}} = \frac{P_{2} V_{2}}{T_{2}}

\frac{P_{1} \times 200 {cm}^{3}}{300 K} = \frac{2 P \times 150 {cm}^{3}}{T_{2}}

Cross multiply:

T_{2} = \frac{300 \times 150 \times 2 P}{200 \times P}

= 450 K

177^{\circ} C

Don't forget to convert to

^{\circ} C

Read lesson note on Kinetic Theory Of Matter And Gas Laws (JAMB)

Kinetic Theory Of Matter And Gas Laws

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By what amount must the temperature of 200cm\(^{3}\) of Nitrogen at 27°C be increased to double the pressure if the final volume is 150cm\(^{3}\) (Assume id...

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