Page 32 - Finalll Science BB Prep2 t1 2025_Neat

Heat: The energy that is transferred from 1 system to another
/ surroundings due to difference in temperature.

Temp. 20º C Temp. 100º C Temp. 28º C

Observation Temperature of cold water increases from 20ºC to 28º C.
Water temperature increases at slower rate .

Temperature of metal balls decreases from 100ºC to 28º C.
Metal balls temperature decreases at greater rate .

As specific heat of water is greater than that of metals.
The temperature of mixture together become 28º C .
Conclusion Heat transfers from higher temperature to
lower temperature

Measuring
unit of heat

is calori

First Term 59