A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. From previous experiments, this chemical reaction is known to absorb 379 kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 395 kJ of work on the piston during the reaction. a. Is this reaction endothermic or exothermic?
b. Does the temperature of the water bath go up or down?
c. Does the piston move in or out?

the current is 0.6

voltage ÷ resistance = current

so 12 ÷ 20 = 0.6

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