Question

For each exercise, you can simulate the described conditions by changing the values in the Run Experiment tool of the Simulation. To be able to measure the effects on pressure or volume, slide the Rspd bar in the Properties box to either P (atm) or V (L), respectively. The slider bar for either pressure or volume will turn yellow when it is selected, and it becomes the only dependent variable, i.e., the value you measure in response to changing the other properties. Note that, when either pressure or volume is selected with Rspd, the respective value can no longer be directly controlled. Let us first examine the behavior of an ideal gas when we force the volume to be a value of our choosing. We can examine how changes to the absolute temperature and number of moles affect the pressure of the gas particles (by selecting pressure with Rspd such that pressure cannot be controlled). Assume that 0.05 mol of helium at a temperature of 275.00 K occupy a volume of 1.70 L. Use the Run Experiment tool in the Simulation to determine the initial pressure of the gas and the new pressure values when the temperature or number of moles is changed to complete the following statements. Match the words in the left column to the appropriate blanks in the sentences on the right. Make certain each sentence is complete before submitting your answer. View Available Hint(s) Reset Help increases The initial pressure of the helium gas is 1.20 atm 0.46 atm From the initial conditions (0.05 mol and 275.00K), if you increased the amount of helium to 0.09 mol, the new pressure would be . Therefore, pressure with the number of moles in proportion. 0.72 atm 1.54 atm From the initial conditions (0.05 mol and 275.00K), if you increased the temperature by 80.00 K, the new pressure would be . Therefore, pressure with 1.33 atın

Answer 1

Initial pressure = 0.66 atm.

New pressure = 1.20 atm

Pressure is directly proportional to moles

2) pressure would be 0.86 atm , therefore pressure increases with temperature in direct proportional