What fraction of collisions will have sufficient energy to react for a gas whose activation energy is 68 kj/mol at 25°c?

A40.0 l tank of ammonia has a pressure of 12.7 kpa. calculate the. volume of the ammonia if it’s pressure is changed to 8.4 kpa while its temperature remains constant.

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?