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Ronan Asked :

21-11-2021 Spirometry

Q. With a 1°C change in temperature, the emf changes by ________ mV.

A. 0.1
B. 0.2
C. 0.5
D. 0.8


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Dapzoi Verified
Commented on 2021-11-21 12:20:29 (IST)
Answer: B

Explanation: The factor –2.3036 RTF is called the slope factor and is clearly dependent upon the solution temperature. With a 1°C change in temperature, the emf changes by 0.2 mV. It is also obvious that the measurement of pH is essentially a measurement of millivolt signals by special methods.