Answer :
Final answer:
The ignition temperature for natural gas is approximately 1000 degrees Fahrenheit. This temperature suggests the need for caution in storing and handling natural gas to prevent ignition or explosion. In the scenario provided, the change in pressure within a gas can due to temperature change can be determined using the ideal gas law.
Explanation:
The ignition temperature for natural gas, assuming it is pure methane, is approximately 1000 degrees Fahrenheit (b). This is the temperature at which methane can ignite in the presence of oxygen without the need for an external flame or spark. It's critical to store natural gas properly to avoid reaching this temperature and causing an unwanted ignition or explosion.
When a warning is put on a can to store it at temperatures below 120 °F, it is because gases expand when heated and can increase the pressure inside the container. At higher temperatures, this can lead to a risk of the can bursting or exploding, especially if it reaches the ignition temperature or is placed near an open flame or source of ignition.
In the scenario where the can of gas is initially at 24 °C and 360 kPa in a volume of 350 mL, if the temperature rises to 50 °C, the new pressure can be calculated using the ideal gas law. According to this law, if the volume of the gas remains constant, the pressure of the gas is directly proportional to its absolute temperature. The calculation would use the formula P1/T1 = P2/T2, where P1 is the initial pressure, T1 is the initial temperature, P2 is the final pressure, and T2 is the final temperature.
