Homework Help is Here – Start Your Trial Now!
Science
Chemistry
4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion a. adiabatic expansion d. isothermal compression 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂O₂ b. K₂CRO4 e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode b. 6.603gm on anode c. 3.311gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl2 + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 c. 0.02 d. 0.3 10. The oxidation state for underlined ion (AsO4³, K2O2, H31062, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)

4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion a. adiabatic expansion d. isothermal compression 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂O₂ b. K₂CRO4 e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode b. 6.603gm on anode c. 3.311gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl2 + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 c. 0.02 d. 0.3 10. The oxidation state for underlined ion (AsO4³, K2O2, H31062, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)

Physical Chemistry
Physical Chemistry
2nd Edition
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Ball, David W. (david Warren), BAER, Tomas
Chapter2: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2.90E
See similar textbooks
icon
Related questions
Question

solve very very fast in 15 min | I need a clear answer by hand, not by keyboard

 

4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion d. isothermal compression a. adiabatic expansion 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂O₂ b. K₂CRO4 e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode b. 6.603gm on anode c. 3.311gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl2 + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 c. 0.02 d. 0.3 10. The oxidation state for underlined ion (AsO4³, K2O2, H31062, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)
Transcribed Image Text:4. In case of an process, the temperature of the system increases b. adiabatic compression c. isothermal expansion d. isothermal compression a. adiabatic expansion 5. A 25.0 gram sample of a compound contains 6.64 grams of potassium (K, at.wt. = 39.1), 8.84 grams of chromium (Cr, at.wt. = 52.0), and 9.52 grams of oxygen (O, at.wt. = 16.0). The empirical formula of this compound is a. K₂Cr₂O7 c. K3CrO3 d. K₂Cr₂O₂ b. K₂CRO4 e. KCrO4 6. On what electrode and What mass (in gram) of chlorine gas could be released from a solution of nickel(II) chloride by a current of 0.25 amperes flowing for 10 hours? (At. Wt Cl=35.5g/mol). a. 3.311gm on cathode b. 6.603gm on anode c. 3.311gm on anode d. 6.603gm on cathode 7-Identify the correct statement(s) in relation to the following reaction Zn + 2HCl → ZnCl2 + H₂ a.zinc is acting as an oxidant b. chlorine is acting as a reductant c.hydrogen ion is acting as an oxidant d. zinc is acting as a reductant 8. A sample of mono atomic ideal gas at 2 atm and 25cº expand adiabatically and reversibly from 4.5 to 12.5 L. Final temperature, final pressure, work, and internal energy of this process respectively are: a. (150k ,0.5at, 246.5J, 250.5J) b.(124k, 3atm, 0, 0) c (150k, 0.36atm, 679J, 679J) d.(140k, 4atm, 633.5J, 0) 9. If you have 25 g of Br2 and dissolved in 1L cyclohexane, density is 0.9Kg/L (At. wt. Br= 79.9). The molality of solution is: a. 0.4 b. 0.17 c. 0.02 d. 0.3 10. The oxidation state for underlined ion (AsO4³, K2O2, H31062, LiAlH4) a. (+5, -2, +7, +1) b. (+5, -1, -1, +1) c. (+3, -2, +7, -1) d. (+5, -1, +7, -1) e. (+3, -1, +7, +1)
Expert Solution
steps

Step by step

Solved in 4 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Thermodynamics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Physical Chemistry
Physical Chemistry
Chemistry
ISBN:
9781133958437
Author:
Ball, David W. (david Warren), BAER, Tomas
Publisher:
Wadsworth Cengage Learning,
Principles of Modern Chemistry
Principles of Modern Chemistry
Chemistry
ISBN:
9781305079113
Author:
David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:
Cengage Learning
Chemistry for Engineering Students
Chemistry for Engineering Students
Chemistry
ISBN:
9781337398909
Author:
Lawrence S. Brown, Tom Holme
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS