Question
Download Solution PDFIn a barometer, air is trapped in the space labelled 'A above the mercury level in the tube of the barometer, which measures 730 mmHg. If the atmospheric pressure is 750 mmHg, then the pressure of the trapped air is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven Data:
Atmospheric Pressure, = 750 mm Hg
Height of the mercury column, h = 730 mm Hg
Calculation:
The relationship between atmospheric pressure and the pressure of air is given by:
\(P_{\text{atm}} = P_{\text{air}} + h \)
\(P_{\text{air}} = P_{\text{atm}} - h \)
\(P_{\text{air}} = 750 \, \text{mmHg} - 730 \, \text{mmHg} \)
\(P_{\text{air}} = 20 \, \text{mmHg} \)
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