A well-insulated stainless-steel bar has a 50 cm length and cross-sectional area of 3.5 cm². One of its ends is maintained at a temperature of 115 ºC while its other end is kept at a temperature of 30 ºC. If the bar is in steady rate condition, find the temperature at a distance of 15 cm from the end that is at 115 ºC. A. 104.5 ºC
B. 104.5 K
C. 89.5 ºC
D. 89.5 K

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

the answer is 0.8m.

by: nicholas