Physics, 03.03.2020 20:46 astultz309459
Superheated water is liquid water that has been heated above its boiling temperature while still in the liquid state. As with supercooled water, superheated water is thermodynamically unstable and spontaneously vaporizes rapidly and irreversibly. 0.901 mol of liquid water are superheated to a temperature of 449 K. The normal boiling temperature is 373 K. Calculate the entropy changes of the system, surroundings, and universe when this superheated water is converted to water vapor at a constant pressure of 1.0 atm. The molar enthalpy of vaporization of water is 40.79 kJ molº?. The constant pressure molar heat capacities of liquid water and water vapor are 75.5 J mol? K and 34.4 ) mol? K , respectively. JK-1 Assys= AS surr As univ= K-1 K-1
Answers: 3
Physics, 22.06.2019 10:00, lorelei7668
(a) calculate the number of electrons in a small, electrically neutral silver pin that has a mass of 10.0 g. silver has 47 electrons per atom, and its molar mass is 107.87 g/mol. (b) imagine adding electrons to the pin until the negative charge has the very large value 1.00 mc. how many electrons are added for every 109 electrons already present
Answers: 3
Physics, 22.06.2019 11:10, myamiller558
Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest.2000 kg car going 5m/s500 kg car going 20 m/s1000 kg car going20m/s500 kg car going10m/s1000 kg car going10/s4000 kg car going 5m/s 0 0 603
Answers: 3
Physics, 22.06.2019 17:00, deathray4035
Photons with the highest energy have the longest period
Answers: 1
Physics, 22.06.2019 19:40, cordovatierra16
Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)
Answers: 1
Superheated water is liquid water that has been heated above its boiling temperature while still in...
Chemistry, 09.12.2020 20:00
Social Studies, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00
Mathematics, 09.12.2020 20:00