NaCl and Pb(NO3)2 are mixed. What is the net ionic equation for this reaction? a. Pb2+ + Cl --> PbCl(s)

b. 2Na+ + 2NO3 --> 2NaNO3 (s)

c. Na+ + NO3 --> NaNO3(s)

d. Pb2+ + 2Cl --> PbCl2(5)

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.

"standard molar enthalpy:

h2o ( liquid water ) : - 285.8 kj/mole

h2o ( water vapor ) : - 241.8 kj / mole.

δhrxn = - 241. 8 - ( - 285.8 )= -241.8 + 285.8 = 44.0

answer: 44.0 kj"