Question

NOTICE Af constant volume, he bemperature of 40 atom of gas was 190°c. The temperature is increased to 315°C, what is the new pressure of the 0 A 512 ml Sangle & gas na enlader with a movalk piston at oooc is heater at a constant pressure of osoontor to 410c. What is its find Ushine? ?

Answer 1

Assuming the Gas to be Ideal for both the problems,

1. According to the Gay-Lussac's Law, the pressure of a given amount of gas held at constant volume is directly proportional to the Absolute temperature. So, p_{​​​​​​2}​​​​​/p​​​_​​​1=T_{​​​​​2}/T₁

Here, p_{​​​​​​1}=4 atm., T_{​​​​​​1}​=463 K, T_{​​​​​​2}=588 K

Therefore, Final Pressure of the Gas(at 315°C)

=(588/463) x 4 = 5.08 atm.​

​​​​​2. According to the Charles' Law, the volume of a fixed mass of a gas is directly proportional to the absolute temperature, at constant pressure. So, V_{​​​​​​2}/V_{​​​​​​1} = T​​​​_{​​​​​​2}/T_{​​​​​1}

Here, T_{​​​​​​1}=273 K, T_{​​​​​​2}=683 K & V_{​​​​​​1}=512 mL

Therefore, Final Volume of the Gas(at 410°C)

=(683/273) x 512 = 1280.94 mL