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TICKET 1-14 1. The compressed air in the cylinder has a temperature of 15^circ C During a fire, the tempera- ture of the air in the cylinder rose to 450^circ C cylinder explode if it is known that at this temperature it can withstand a pressure of no more than 9.8 MP a? The initial pressure of air is 4.8 MPa.

Вопрос

TICKET 1-14
1. The compressed air in the cylinder has a temperature of 15^circ C During a fire, the tempera- ture of the air in the cylinder rose to 450^circ C	cylinder explode if it is known that at
this temperature it can withstand a pressure of no more than 9.8 MP a? The initial pressure
of air is 4.8 MPa.

TICKET 1-14 1. The compressed air in the cylinder has a temperature of 15^circ C During a fire, the tempera- ture of the air in the cylinder rose to 450^circ C cylinder explode if it is known that at this temperature it can withstand a pressure of no more than 9.8 MP a? The initial pressure of air is 4.8 MPa.

Решения

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Михаил
Экспертная проверкаЭкспертная проверка
элита · Репетитор 8 лет

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To determine whether the cylinder will explode, we need to use the ideal gas law in the form of the combined gas law, which relates the pressure and temperature of a gas while keeping the volume constant:<br /><br />\[ \frac{P_1}{T_1}frac{P_2}{T_2} \]<br /><br />Where:<br />- \( P_1 \) is the initial pressure<br />- \( T_1 \) is the initial temperature in Kelvin<br />- \( P_2 \) is the final pressure<br />- \( T_2 \) is the final temperature in Kelvin<br /><br />First, convert the temperatures from Celsius to Kelvin:<br />\[ T_1 = 15^{\circ}C + 273.15 = 288.15 \, K \]<br />\[ T_2 = 450^{\circ}C + 273.15 = 723.15 \, K \]<br /><br />Next, use the combined gas law to solve for the final pressure \( P_2 \):<br />\[ P_2 = P_1 \times \frac{T_2}{T_1} \]<br />\[ P_2 = 4.8 \, MPa \times \frac{723.15 \, K}{288.15 \, K} \]<br />\[ P_2 \approx 4.8 \, MPa \times 2.51 \]<br />\[ P_2 \approx 12.05 \, MPa \]<br /><br />Since the final pressure \( P_2 \) (approximately 12.05 MPa) is the maximum pressure the cylinder can withstand (9.8 MPa), the cylinder will not explode.
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