Chemistry - Discovering Gas Laws Notes

In this experiment, you will generate entropy to develop hypotheses that adjoin force per unit atomic number 18a and heap, and pressure and temperature. In the starting time case, you will compress and overstate a sample of argumentation and measure how its pressure changes. In the second, you will cool and rut a sample of air to see how its pressure changes. 1. carry through a purpose. The purpose of this laboratory is to monitor the pressure changes in two different scenarios (compressing and expanding a sample of air, and cooling and change a sample of air). This data will be utilize to help us rede the relationships betwixt pressure and garishness, and pressure and temperature. 2. When vary pressure and multitude (as in Boyle?s Law) to actualise how they are related, what other variables of the triggerman moldiness stop unvarying?When varying pressure and volume to understand how they are related, the number of moles and the temperature of the spoil m ust remain constant. Boyle?s LawP1V1 = P2V23. When varying pressure and temperature (as in Gay-Lussac?s Law) to understand how they are related, what other variables of the gas must remain constant?When varying pressure and temperature to understand how they are related, the number of moles and volume of the gas must remain constant. Gay-Lussac?s Law --> P and T (variables); V and N (constants)P1 = P2T1 T2As you step-up the pressure, causes the temperature to increase.

-direct relationship between pressure and temperature (diagonal line graph)since temperature is the measure of the middling amount of energisin g energy → if temperature increases th! e faster the particles are pitiable and there is an increase number of collisions with the walls of the container (which is increased pressure)-pressure cooker --> speeds up homework time because the high school pressures cause the food to be cooked at much high temperaturesUse Boyle?s, Charles?, or Gay-Lussac?s practice of law to calculate the missing abide by in severally of the following. a. V1 = 2.0 L, P1 = 0.82 atm, V2 = 1.0 L, P2 = ?P2 = P1V1 = (0.82 atm)(2.0 L) = 1.6 atmV2 1.0 Lb. V¬1 = 250 mL, T1 = ?, V2 = 400 mL, T¬2 = 298 KT1 = T2V1 = (298 K)(250 mL) = 186 K → 200 KV2 400 mLc. V1 = 0.55 L, P1 = 740 mm Hg, V2 = 0.80 L, P2 = ?P2 = P1V1 = (740 mm Hg)(0.55 L) = 510 mm HgV2 0.80 Ld. T1 = 25°C, P1 = ?, T2 = 37°C, P2 = 1.0 atmT1 = 25°C + 273 = 298 KT2 = 37°C + 273 = 310 KP1 = P2T1 = (1.0 atm)(298 K) = 0.96 atmT2 (310 K) If you pauperization to get a full essay, crop it on our website: OrderCustomPaper.com

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