June 2016 Chemistry Regents #63-65

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Question 51 Questions 52-53 Questions 54-55 Questions 56-58 Questions 59-60 Questions 61-62 Questions 63-65 Questions 66-69  Questions 70-71  Questions 72-74  Questions 75-77  Questions 78-81  Questions 82-85

 

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Question 63-65

 

 

Base your answers to questions 63 through 65 on the information below and on your knowledge of chemistry.

A sample of helium gas is placed in a rigid cylinder that has a movable piston. The volume of the gas is varied by moving the piston, while the temperature is held constant at 273 K. The volumes and corresponding pressures for three trials are measured and recorded in the data table below. For each of these trials, the product of pressure and volume is also calculated and recorded. For a fourth trial, only the volume is recorded.

63  State evidence found in the data table that allows the product of pressure and volume for the fourth trial to be predicted. [I]

Answer-->   P  x V is the same for each trial

64  Determine the pressure of the helium gas in trial 4. [I]

Answer-->0.300 atm

65 Compare the average distances between the helium atoms in trial I to the average distances between the helium atoms in trial 3, [I]

Answer-->  trial 3 has atoms that are further apart than trial 1

on to Questions 66-69

 

 

Questions 1-5 Questions 6-10 Questions 11-15 Questions 16-20 Questions 21-25 Questions 26-30 Questions 31-35 Questions 36-40 Questions 41-45 Questions 46-50

Question 51 Questions 52-53 Questions 54-55 Questions 56-58 Questions 59-60 Questions 61-62 Questions 63-65 Questions 66-69  Questions 70-71  Questions 72-74  Questions 75-77  Questions 78-81  Questions 82-85

 

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