Question

If two systems at different temperatures have contact with each other, heat will flow from the system at
1
20°C to a system at 303 K
2
30°C to a system at 313 K
3
40°C to a system at 293 K
4
50°C to a system at 333 K

Answer 1

The heat will flow from the system at 40°C to a system at 293 Kelvin.

Flow of temperature

If two systems at different temperatures have contact with each other, heat will flow from the system at 40°C to a system at 293 Kelvin because temperatures moves from hotter body to cold body.

Reason

We know that 293 kelvin is equals to 20° Celsius which is lower than 40° Celsius so the heat energy moves from the body having 40° Celsius temperature to the body having 293 kelvin temperature so we can conclude that the heat will flow from the system at 40°C to a system at 293 Kelvin.

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