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Question

The pressure of the gas in a constant volume gas thermometer at steam point (373.15K) is 1.5×104 Pa. What will be the pressure at the triple point of water ?

A
1.10×104 Pa
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B
1.50×104 Pa
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C
2.10×104 Pa
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D
2.50×104 Pa
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Solution

The correct option is A 1.10×104 Pa
PT=PtmTtr; we know Ttr=273.16 K
Here given P=1.5×104Pa;T=373.15 K
Ptr=1.5×104×273.16373.15
Ptr=1.10×104 Pa

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