Question 12
1 pts
In a system the mass is kept constant. The initial temperature of the system is $131^{\circ} C$ and the volume is $7.1 L$ . If the temperature changes to ${31.1}^{\circ} C$ , the pressure to $29.4 atm$ , and the volume changes to $15.7 L$ , what was the original pressure?

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Solve for the initial pressure, $P_{1}$ : $P_{1} = \frac{P_{2} V_{2} T_{1}}{T_{2} V_{1}}$

Steps

Step 1 ：Using the ideal gas law: $P V = n R T$

Step 2 ：Since mass is constant and the gas is the same, we can relate the initial state and final state through their volumes, temperatures, and pressures: $\frac{P_{1} V_{1}}{T_{1}} = \frac{P_{2} V_{2}}{T_{2}}$

Step 3 ：Solve for the initial pressure, $P_{1}$ : $P_{1} = \frac{P_{2} V_{2} T_{1}}{T_{2} V_{1}}$

Question 121 ptsIn a system the mass is kept constant. The initial temperature of the system is 131∘C and the volume is 7.1 L. If the temperature changes to 31.1∘C, the pressure to 29.4 atm, and the volume changes to 15.7 L, what was the original pressure?

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Question 12
1 pts
In a system the mass is kept constant. The initial temperature of the system is $131^{\circ} C$ and the volume is $7.1 L$ . If the temperature changes to ${31.1}^{\circ} C$ , the pressure to $29.4 atm$ , and the volume changes to $15.7 L$ , what was the original pressure?