A thermistor is a temperature-sensing element composed of a semiconductor material, which exhibits a large change in resistance proportional to a small change in temperature.
A particular thermistor has a resistance of 5 kΩ at 25°C. Its resistance is 340 Ω at 100°C.
Assuming a straight-line relationship between these two values, at what temperature will the thermistor's resistance equal 1 kΩ?