is the temperature of an empty space measured by a thermometer
Answers
Answer:
No, thermometer cannot be used to measure empty space temperature.
Explanation:
Empty space has no temperature. However, if you were to leave an object somewhere in deep space, far from any stars, planets or other bodies, it will eventually come into thermal equilibrium with the cosmic microwave background (CMB), which is thermal radiation with a temperature of 2.7 K.
So if the thermometer, say, was originally at room temperature, it will start to radiate that heat out into empty space. thermometer will start to cool, radiating away its residual heat. It will cool all the way down to about 2.7 kelvin (that is, roughly -270°C or -455°F). Why no further? Because at that low temperature, it will radiate the same amount of heat that it receives from the deep sky in the form of the cosmic microwave background radiation. In short, the thermometer will be in thermal equilibrium with the sky
Answer:
No, the temperature of an empty space measured by a thermometer.
Explanation:
Temperature of outer space cannot be measured in space. Temperature measurement by a thermometer is usually the temperature of medium around it due to the sum total of kinetic energy of particles around it.
But, in space due to lack of particulate matter there would be loss of temperature. In general in space temperature of a thermometer decreases to as low as 2.73 K. This is due to loss of heat from radiation from previously used thermometric heat.