10.5 g of lithium bromide is dissolved in 500mL of water in a calorimeter. The initial temperature of the water is 22.5°C. After dissolving, the water temp is
28.1°C. What is the molar enthalpy of the LiBr solution?

the answer is c i did the same question so i know that's right!

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

i think it would be 5