A platinum resistance thermometer has resistances of 180.0 when placed in a 0
A platinum resistance thermometer has resistances of 180.0 when placed in a 0
Homework Answers
Initial temperature is 20C, Final temperature is
0C,R0=180?
R0 = R20 [1+(3.92x10-3)(0-20)]
180? = R20 (.9216)
R20 = 195.3 ?
Rmeltingtemp = 249.8?
Let T = melting temp
249.8 = 195.3[1+(3.93x10-3)(T-20)]
1.279 = 1+(3.93x10-3)(T-20)
0.279 = (3.93x10-3)(T-20)
T - 20 = 71
T=91 C
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A platinum resistance thermometer has resistances of 180.0 when
placed in a 0
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