QUESTION 23 What is the entropy change of the surroundings if the enthalpy change of your...
Question 21 0/4 pts What is the entropy change of the surroundings when the reaction below is carried out at 298K under standard conditions? C(graphite) + 2H2(g) → CH4(g) AH° = -74.9 kJ Answer in J/K to three significant figures. red -251 wers Between 241.3 and 261.3
The enthalpy of vaporization of water at 100.0°C is 40.75kJ/mol. What is the entropy change in the surroundings when one mole of water vapor condenses at 100.0°C in a large room maintained at a temperature of 39.00°C? (answer in J/K) Answer: 131 Check
At what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings? A reaction has delta Hrxn= -129KJ and delta Srxn= 317k/J.
What is ΔHsys (in kJ) if the entropy change of the surroundings is measured to be +150 J/K at a temperature of 350 K?
What is the entropy change to the surroundings when 1 mol of ice melts in someone's hand if the hand temperature is 32°C? Assume a final temperature for the water of 0°C. The heat of fusion of ice is 6.01 kJ/mol. a. -188 J/K b. -22.0 J/K c. -19.7 J/K d. +19.7 J/K e. +188 J/K
The enthalpy of vaporization of water at 100 0°C is 40.43 kJ/mol. What is the entropy change in the surroundings when one mole of water vapor condenses at 100.0°C in a large room maintained at a temperature of 20.00°C? (answer in J/K) Answer Check
Please explain Heat Transfer and Changes in the Entropy of the Surroundings. Below are key questions. 1. Know and understand that the entropy change for the universe is defined in terms of the entropy change for the system and the entropy change for the surroundings. 2 .Know that a process in which the system’s entropy decreases can still be spontaneous depending on the degree to which the surroundings’ entropy changes. 3. Know and understand that an exothermic process increases the...
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the final number of microstates is 0.465 times that of the initial number of microstates? (units is J/K.particle) Quantitative relationship between entropy and number of microstates the Boltzmann equation where k is the Boltzmann constant per molecule (particle), 1.38 × 10 23 J/(K-particle). From this equation the entropy change, ΔS, for a system can be related to the...
A substance melts with an enthalpy change of 75 kJ/mol and an entropy change of 98 J/K.mol. What is its melting temperature? A) 0.77 K B) 765 K C) 1.69 K D) 425 K E) 591 K
Question 10 Tries remaining Points out of 100 Flaggston What is the overall change in entropy (J/K) of the 'universe' for the condensation of an unknown substance B? The change in entropy for the process is -8.8 J/K and the change in entropy for the surroundings is 12.2 J/K. Multiple tries are permitted; however, 20% (1/5) point will be deducted for each incorrect response Answer: Check