heart of darkness essays

heart of darkness essays Good and Evil: Fight to the Finish William's Lord of the Flies, (1954) an Conrad's Heart of Darkness, (1902) there are affective comparisons and contrasts between the protagonist and the antagonist. Even though the protagonist and the antagonist have the same intentions, they have different motives. In Heart of Darkness, Marlow wants to save Kurtz, but the manager doesn't want Marlow to bring back Kurtz, because the manager is afraid that if Marlow brings back Kurtz than he'll have to quit his job and give it to Kurtz. In Lord of the Flies, Jack wants to take over the leadership and Ralph, on the other hand, wants to be a leader himself. Ralph wants to be the leader so that he could make some kind of plan to get off the island, but Jack wants to be a leader so he can be the ruler and hunt, so that he has meat for himself. (9, 137) The protagonist wants victory over the antagonist and the antagonist wants to de-feat the protagonist. Where as the e antagonist has an evil purpose and the protagonist had a good purpose. A similar concept between the protagonist and the antagonist is that both of them are brave enough to dare to go against each other. They don't hide from each other, but they both of out and confront each other. In Heart of Darkness, Marlow knew that the manager didn't want Kurtz back, but he was brave enough to try bringing Kurtz back. the manger knew Marlow was just like Kurtz. That he will not give up so easy. The manager did everything in his power to stop Marlow. Even if they think their opponent is stronger, they don't back away from the fear of facing them. In Lord of the Flies, Piggy knows that Jack and his tribe is stronger than him, but still he goes over to the tribe and speaks his mind out about how they were wrong. (156) when a person makes up their mind to confront their opponent, nothing can stop them. Another comparable characteristic between the protagonist and the ...

How to Calculate the Density of a Gas

How to Calculate the Density of a Gas If the  molecular mass  of a gas  is known, the ideal gas law can be manipulated to find the density of the gas. Its just a matter of plugging in the right variables and performing a few calculations. How to Calculate Gas Density What is the density of a gas with molar mass 100 g/mol at 0.5 atm and 27 degrees Celsius? Before you begin, keep in mind what youre looking for as an answer in terms of units. Density is defined as mass per unit volume, which can be expressed in terms of grams per liter or grams per milliliter. You may need to do unit conversions. Keep on the lookout for unit mismatches when you plug values into equations. First, start with the ideal gas law: PV nRT where P pressure,  V volume,  n number of moles of gas,  R gas constant 0.0821 L ·atm/mol ·K, and  T absolute temperature  (in Kelvin). Examine the units of R carefully. This is where many people get into trouble. Youll get an incorrect answer if you enter a temperature in Celsius or pressure in Pascals, etc. Always use atmosphere for pressure, liters for volume, and Kelvin for temperature. To find the density of the gas, you  need to know the mass of the gas and the volume. First, find the volume. Here is the ideal gas law equation rearranged to solve for V: V nRT/P After you have found the volume, you must find the mass. The number of moles is the place to start. The number of moles is the mass (m) of the gas divided by its molecular mass (MM): n m/MM Substitute this mass value into the volume equation in place of n: V mRT/MM ·P Density (Ï ) is mass per volume. Divide both sides by m: V/m RT/MM ·P Then invert the equation: m/V MM ·P/RTÏ  MM ·P/RT Now you have the ideal gas law rewritten in a form you can use with the information you were given. To find the density of the gas, just plug in the values of the known variables. Remember to use absolute temperature for T: 27 degrees Celsius   273 300 KelvinÏ  (100 g/mol)(0.5 atm)/(0.0821 L ·atm/mol ·K)(300 K) Ï  2.03 g/L The density of the gas is 2.03 g/L at 0.5 atm and 27 degrees Celsius. How to Decide If You Have a Real Gas The ideal gas law is written for ideal or perfect gases. You can use values for real gases so long as they act like ideal gases. To use the formula for a real gas, it must be at low pressure and low temperature. Increasing pressure or temperature raises the kinetic energy of the gas  and forces the molecules to interact. While the ideal gas law can still offer an approximation under these conditions, it becomes less accurate when molecules are close together and excited.