Homework Answers
Entropy increases because of randomness not because of temperature. The greater is the randomness, the higher is the entropy
Gases and plasmas have large amounts of entropy when compared to liquids and solids. (3) When a solid becomes a liquid, its entropy increases. ... Liquids have more energy and entropy than solids. (5) Any chemical reaction that increases the number of gas molecules also increases entropy.
From this information ENTROPHY INCREAS ORDER
A) solid CO2 at - 75 degrees(solid CO2 occupied less space I. e randomness is very less < CO2 gas sample at 0 degree C
B) rock sugar(solid in nature I. e less randomness/less irregularity /less entropy < same sugar dissolved in cup of tea ,this this process provides more space to suger in tea, hence entropy increases
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2. State which one has a higher entropy (irregularity) value than the two the following choice!...
For each of the following pairs, tell which has a higher entropy and explain why. 6. a. A sample of solid CO2 at-78°C or CO2 vapor at -78°C b. A solid sugar cube or the same sugar dissolved in a...
For each of the following pairs, tell which has a higher entropy and explain why. 6. a. A sample of solid CO2 at-78°C or CO2 vapor at -78°C b. A solid sugar cube or the same sugar dissolved in a cup of tea. Two 100 mL beakers, one containing pure water and the other containing pure alcohol, or a beaker containing the same two samples after they have been mixed together. c. d. NaCI(s) or CaO(s) e. Cl2(g) or Br2(g)...
Which of the following statements are true (select ALL that apply) (a) The standard entropy of...
Which of the following statements are true (select ALL that apply) (a) The standard entropy of any compound is greater than 0. (b) For a given compound the entropy of a molecule in the gas phase is higher than in a liquid at the same temperature. (c) In a spontaneous process the entropy of the system always increases (d) In a spontaneous process the entropy of the universe always increases. (e) The reaction entropy is always positive. (f) The standard...
The statements in the following list all refer to thermodynamics and entropy. Check the boxes of...
The statements in the following list all refer to thermodynamics and entropy. Check the boxes of the THREE CORRECT statements. 1. Entropy is similar to energy and obeys a conservation law. 2. In an adiabatic process the change in the internal energy of the gas is the same as the work done on the gas. 3. An ideal gas undergoes a reversible process whereby the pressure of the gas decreases by a factor of 3 but its volume increases by...
(aq) (1) Mg(OH)2 is partially dissolved in water: Mg(OH), (s) = Mg2+ (aq) + 2OH Write...
(aq) (1) Mg(OH)2 is partially dissolved in water: Mg(OH), (s) = Mg2+ (aq) + 2OH Write the Kop expression for Mg(OH)2 : Kp = (2) Solid AgCl is partially dissolved in water: AgCl 2 Ag+ + CI''. If the molar solubility is known as [Ag +) = [CI''] = 1.3x 10 M, AgCl Kip =- (a) 1.3 x 10 (b) 1.69 x 10-10 (c) 2.6 x 10 (d) none of these (3) At 25 °C, the solubility of solid AgCl...
2. Which of the following is in the correct order of standard state entropy? I. CO2(g)...
2. Which of the following is in the correct order of standard
state entropy?
I. CO2(g) < CO(g)
II. Br2(l) < Br2(g)
III. S8(s) < S2(g)
I need help with all 3 questions.. Please explain.
2. Which of the following is in the correct order of standard state entropy? I. CO1g)COG) II. Br2(l) <Br2(g) III. Ss(s)< S2(g) a. I only b. II only c. III only d. I and II only II and III only e. 3. Determine the value...
Which one of the following statements correctly defines a time value of money relationship? Multiple Choice...
Which one of the following statements correctly defines a time value of money relationship? Multiple Choice 2.5 points eBook • Time and future values are inversely related, all else held constant. Print References O Interest rates and time are positively related, all else held constant. O An increase in a positive discount rate increases the present value. O An increase in time increases the future value given a zero rate of interest. O Time and present value are inversely related,...
For each of the following pairs of molecules, identify, which molecule holds the larger entropy value,...
For each of the following pairs of molecules, identify, which molecule holds the larger entropy value, and briefly (1-3 sentences) explain why. a. 1 mol of H2 O (l) or 1 mol of H2O (g) (both at 100 C) b. 1 mol of I2 (g) or 1 mol of F2 (g) c. 3 mol of O2 (g) or 2 mol of O2 (g) d. 1 cup of coffee at 35 C or 1 cup of coffee at 20 C
1. Which of the following is in the correct order of standard state entropy? I. Liquid...
1. Which of the following is in the correct order of standard state entropy? I. Liquid water < gaseous water II. Liquid water < solid water III. NH; <H3 a. I only b. II only III only d. I and II only e. I and III only c. 2. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d. H2O(1) b. He(g) CaCO3(s) c. C(s, graphite) e. 3. Indicate which of the following has the...
asap Question 5 (1 point) For the following reaction at equilibrium, which choice gives a change...
asap
Question 5 (1 point) For the following reaction at equilibrium, which choice gives a change that will shift the position of equilibrium to favor products? CuO(s) + H2(g) H2O(g) + Cu(s); = -2.0 kJ/mol increase the temperature add some Cu(s) decrease the temperature remove some CuO(s) Question 6 (1 point) Determine the freezing point of a solution which contains 18 g of Na2SO4 in 175 g of water. Kf = -1.86°C/m 0-0.57°C 0-9.43°C O-4.04°C -1.35°C A student is taking...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record how many teaspoons dissolved in 1/2 cup of water. NaCl: Start out with 4 small glasses (cups) and add 1/2 cup of water to each. Put 1/2 level teaspoon (tsp) of salt (NaCl) into the first cup and stir. If it dissolves within 1 minute; add another 1/2 tsp of salt and stir. Count the number of 1/2 tsps you are adding. Repeat until...
For each of the following pairs, tell which has a higher entropy and explain why. 6. a. A sample of solid CO2 at-78°C or CO2 vapor at -78°C b. A solid sugar cube or the same sugar dissolved in a cup of tea. Two 100 mL beakers, one containing pure water and the other containing pure alcohol, or a beaker containing the same two samples after they have been mixed together. c. d. NaCI(s) or CaO(s) e. Cl2(g) or Br2(g)...
(aq) (1) Mg(OH)2 is partially dissolved in water: Mg(OH), (s) = Mg2+ (aq) + 2OH Write the Kop expression for Mg(OH)2 : Kp = (2) Solid AgCl is partially dissolved in water: AgCl 2 Ag+ + CI''. If the molar solubility is known as [Ag +) = [CI''] = 1.3x 10 M, AgCl Kip =- (a) 1.3 x 10 (b) 1.69 x 10-10 (c) 2.6 x 10 (d) none of these (3) At 25 °C, the solubility of solid AgCl...
2. Which of the following is in the correct order of standard
state entropy?
I. CO2(g) < CO(g)
II. Br2(l) < Br2(g)
III. S8(s) < S2(g)
I need help with all 3 questions.. Please explain.
2. Which of the following is in the correct order of standard state entropy? I. CO1g)COG) II. Br2(l) <Br2(g) III. Ss(s)< S2(g) a. I only b. II only c. III only d. I and II only II and III only e. 3. Determine the value...
Which one of the following statements correctly defines a time value of money relationship? Multiple Choice 2.5 points eBook • Time and future values are inversely related, all else held constant. Print References O Interest rates and time are positively related, all else held constant. O An increase in a positive discount rate increases the present value. O An increase in time increases the future value given a zero rate of interest. O Time and present value are inversely related,...
1. Which of the following is in the correct order of standard state entropy? I. Liquid water < gaseous water II. Liquid water < solid water III. NH; <H3 a. I only b. II only III only d. I and II only e. I and III only c. 2. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d. H2O(1) b. He(g) CaCO3(s) c. C(s, graphite) e. 3. Indicate which of the following has the...
asap
Question 5 (1 point) For the following reaction at equilibrium, which choice gives a change that will shift the position of equilibrium to favor products? CuO(s) + H2(g) H2O(g) + Cu(s); = -2.0 kJ/mol increase the temperature add some Cu(s) decrease the temperature remove some CuO(s) Question 6 (1 point) Determine the freezing point of a solution which contains 18 g of Na2SO4 in 175 g of water. Kf = -1.86°C/m 0-0.57°C 0-9.43°C O-4.04°C -1.35°C A student is taking...
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