Answer:
T2 = 94.6 C
Explanation:
Use Clausius-Clayperyon equation.
ln P1/P2 = ∆Hvap/R (1/T2 - 1/T1) where R = 8.314 J/mol-K and T is in degrees K
P1 = 760 mmHg
P2 = 630 mmHg
T1 = 373 K
T2 = ?
∆Hvap = 40.7 kJ/mole
R = 0.008314 kJ/mole-K (NOTE: change R to units of kJ)
Plug in and solve for T2
ln 760 mmHg/630 mmHg = 40.7 kJ/mole (1/T2 - 1/373K)
T2 = 367.74 K = 94.6 C
What subject is this again ? If I know now then I would have a better understanding of what I’m gonna answer so you don’t get it wrong !
Answer: C. They must have the same average kinetic energy.
Explanation: I got it right
The question is asking to calculate the mass in grams of the acetone that has a volume of 28.74 ml. Base on that, the possible answer would be 22.58 grams. I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications
