The table below shows the time-temperature course during dissolution of KNO3 sample of 3.16 g in 146 mL water. Plot the data, evaluate AT and calculate the reaction enthalpy. time/s t/°C 18.54 15 18.56 30 18.58 45 18.56 60 18.59 75 18.65 90 18.64 105 18.65 120 18.68 135 18.63 150 18.58 165 18.39 180 18.01 200 17.73 220 17.32 240 17.19 260 16.96 280 17.01 300 17.00 320 17.02 340 17.11 360 17.10 380 17.15 400 17.17 Give your calculated enthalpy in kJ-mol1 to 3 significant figures

The table below shows the time-temperature course during dissolution of KNO3 sample of 3.16 g in 146 mL water. Plot the data, evaluate AT and calculate the reaction enthalpy. time/s t/°C 18.54 15 18.56 30 18.58 45 18.56 60 18.59 75 18.65 90 18.64 105 18.65 120 18.68 135 18.63 150 18.58 165 18.39 180 18.01 200 17.73 220 17.32 240 17.19 260 16.96 280 17.01 300 17.00 320 17.02 340 17.11 360 17.10 380 17.15 400 17.17 Give your calculated enthalpy in kJ-mol1 to 3 significant figures

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter6: Equilibria In Single-component Systems

Section: Chapter Questions

Problem 6.36E

See similar textbooks

Similar questions

Although ideally, U=H=0 for a gas-phase process at constant T, A and G are not. Explain why this is so.
When one dives, water pressure increases by 1atm every 10.55m of depth. The deepest sea depth is 10, 430m. Assume that 1mole of gas exists in a small balloon at that depth at 273K. Assuming an isothermal and reversible process, calculate w, q, U, H, A, and S for the gas after it rises to the surface, assuming the balloon doesnt burst
what are the Reasonable Mechanism
Based on the given data, why is Qlost + Qgained is not equal to zero? Please state what could be the possible sources of error? Please explain briefly (I will give a high rate)
Need the mechanism
Use equation 18.44 to show that pV=NkT.
Years and the table of standard formation and thaws but your fine under the alexs dedicate tabs calculate the reaction empathy of the reaction under standard conditions 2HNO2g+O2g=2HNO3g
What ratio of hexane and pentane in terms of A) molar fraction and B) mass should be mixed to obtain the maximum mixing entropy? (Hexane and heptane are approximately the ideal solution.) Tip : Please Type the Solve here ( not handwriting in paper )
True of false? There is only one value for the reaction quotient of a given reaction at a given tempature
Derive equation 20.22.
8.3. Two small metallic bodies are given opposite charges, with the negatively charged body having twice the charge of the positively charged body. They are immersed in water (dielectric constant) at a distance of, and it is found that the force of attraction between the two metal pieces is . (a) What are the charges on the pieces of metal? (b) What are the electric fields of the two bodies?
Given is a compound, estimate its λmax