.A spray can is used until it is empty except for the propellant gas, whic h has
ID: 552248 • Letter: #
Question
.A spray can is used until it is empty except for the propellant gas, whic h has a pressure of 1344 torr at 23 °C. If the can is thrown will be the pressure in the hot can? (3 pts) into a fire (T2475°C), what 2. What is the temperature of an 11.2-L sample of carbon monoxide, CO, at 744 torr if it occupies 23.5 L at 65 °C and 744 torr? (3 pts) 3. A2.50-L volume of hydrogen measured at -100 °C is warmed to 100 °C Calculate the volume of the gas at the higher temperature, assuming no change in pressure. (3 pts) 4. Define the ideal gas law (2 pts) 5. How many grams of gas are present in each of the following cases? (6 pts) a. 0.500 L of CO2 at 507 torr and 36 °C b. 221 mL of He at 0.23 torr and 54 °C 6. If the temperature of a fixed amount of a gas is doubled at constant volume what happens to the pressure? (2 pts)Explanation / Answer
1)
we have:
P1 = 1344 torr
T1 = 23.0 oC
= (23.0+273) K
= 296 K
T2 = 475.0 oC
= (475.0+273) K
= 748 K
we have below equation to be used:
P1/T1 = P2/T2
1344 torr / 296.0 K = P2 / 748.0 K
P2 = 3396 torr
Answer: 3396 torr
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