Page 18 - Finalll Science BB Prep2 t1 2025_Neat

Exp. 2 Surface area of
P.O.C
Exp. 1 Temperature

liquid

1 2 1 2

Controlled Surface area of liquid Temperature
variables Humidity % Humidity %
Air currents Air currents
Diff in surface area of liquid
Diff. in temperature
Independent

variable
Dependent Evaporation rate in 1 is Evaporation rate in 1 is

greater than that in 2 greater than that in 2
variable
Conclusion Evaporation rate increases Evaporation rate increases by

by increasing temperature increasing surface area of
liquid

Explanation Evaporation increases due Evaporation increases due to
to increasing the number of increasing the number of
molecules have sufficient molecules that can gain
thermal energy to overcome required thermal energy to be

the attractive forces & released from the surfa ce
escape from the surface

First Term 27