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The pressure reading in a thermometer at...

The pressure reading in a thermometer at steam point is `1.367 xx 10^3` Pa. What is pressure reading at triple point knowing the linear relationship between temperature and pressure?

Text Solution

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We have `P_("triple")= 273 .16 xx ((P)/(T))` where `P_("triple") `and P are the pressures at temperate of triple point `(273.16 K)` and T respectively . We are given that `P= 1.367 xx 10^3 ` pa at steam point i.e., at 273.15 + 100 = 373.15 K.
` therefore P_("triple") =273.16 xx ((1.367 xx 10^3)/(373.15))`
`=1.000 xx 10^3 Pa `
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