Which reaction is endothermic?
HCl + NaOH Right arrow. NaCl + H2O + 58 kJ
6CO2 + 12H2O + energy Right arrow. C6H12O6 + 6O2 + 6H2O
2Na + Cl2 Right arrow. 2NaCl + energy
2C2H6 + 7O2 Right arrow. 4CO2 + 6H2O + 2,502 kJ

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

the answer is a and have a great day

i'm pretty sure it is letter c.) car

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year