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 ΔHsys (in kJ) if the entropy change of the surroundings is measured to be +150 J/K at a temperature of 350 K?
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.
a reaction has a delta Hrxn= -133 Kj and delta Srxn= 317 J/K. at what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings? Exercise 19.44 with feedback A reaction has AH 133 kJ and Asran 317 J/K. You may want to reference (D pages T80-793) section 19.5 while completing this problem Part A Al what temperature is the change in entropy for the reaction equal to the change in entropy...
QUESTION 23 What is the entropy change of the surroundings if the enthalpy change of your system is -10.8Kj and the temperature is 298K. Provide your answer in J/K with no units shown
Part A: An object at 400 K absorbs 25.0 kJ of heat from the surroundings. What is the change in entropy ?S of the object? Assume that the temperature of the object does not change appreciably in the process. Part B: An object at 500 K dissipates 25.0 kJ of heat into the surroundings. What is the change in entropy ?S of the object? Assume that the temperature of the object does not change appreciably in the process.
The entropy change for the process:H2O(s)→H2O(l)is 22.1 J/Kand requires that that surroundings transfer 6.00 kJ of heat to the system. Is the process spontaneous at -10.000C? is it spontaneous at 10.000C?
Determine the change in entropy of the universe,in J/k when 2 moles of nitrogen at 20 C are expanded isothermally in a piston-cylinder device with a change in pressure from 2 to 1 bar.The heat loss to the surroundings at 20 C is 3.4 kJ
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
A reaction has ΔH∘rxn= -115 kJ and ΔS∘rxn= 319 J/K . You may want to reference (Page) section 17.4 while completing this problem. At what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings? Express your answer in kelvins.
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
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