do 43 with explanation its Review Questions and volume. What is the new pressure
ID: 1581882 • Letter: D
Question
do 43 with explanation
its Review Questions and volume. What is the new pressure inside the container in units of pascals [Pa]? 43. A spacecraft is equipped with nine sensors, designed to gather data to attempt to reconstruct how the Martian planet may have lost its atmosphere. A reaction vessel is used as part of a chemical analysis process. The chemical reaction proceeds most efficiently at a temperature of 27 degrees Celsius [ C]. The 1.2-gallon [gal] reactor initially contains 0.3 moles [mol] of an ideal gas at a pressure of 1.95 atmospheres latm]. To reach the ideal temperature for the reaction, the pressure in the reactor will be changed from the current conditions, while the volume and amount will remain constant. Determine the change (increase or decrease) in the pressuré of the reactor in units of pascals [Pa] necessary to allow the reaction to proceed at the most efficient temperatur 44. A robotic rover on Mars finds a spherical rock with a diameter of 10 centimeters Icml. The rover picks up the rock and lifts it 20 centimeters [cm] straight up. TheExplanation / Answer
given
n = 0.3 moles
V = 1.2 gallon
= 1.2*3.785*10^-3
= 0.004542 m^3
T = 27 degrees
= 27 + 273
= 300 K
Actual pressure = 1.95 atm
= 1.95*1.013*10^5
= 1.975*10^5 pa
Pressure required, P = ?
Use, P*V = n*R*T
P = n*R*T/V
= 0.3*8.314*300/0.004542
= 1.647*10^5 pa
so, The pressure need to decreased.
delta_P = P_actual - P_required
= 1.975*10^5 - 1.647*10^5
= 3.28*10^4 pa <<<<<<<<<<-------------------Answer
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