Why does petrol vapour gets stucked into the carborator of
thecar.

vapour gets stuckes into the carburetor when the car engine heat up with continuous acceleration and deceleration.

Explanation:Vapor lock occurs when the car engine gets heat up with continuous acceleration and deceleration. The automobile engine has to work harder during the hot summer days. An automobile engine runs hotter than usual in the stop-go traffic.. This extreme heat vaporizes the fuel in carburetor and fuel pump.

e

explanation:

there is no change in the electric potential energy as it is in rest on both conditions.