The enthalpy change for heating a one mole sample of an ideal, monoatomic gas at 25°C is 3.75 KJoules, the enthalpy change for the same process but done at 125 °C would be ________ Kilojoules. (NOTE: express answer in TWO SIGNIFICANT FIGURES)
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The enthalpy change for heating a one mole sample of an ideal, monoatomic gas at 25°C is 3.75 KJoules, the enthalpy change for the same process but done at 125 °C would be ________ Kilojoules.
(NOTE: express answer in TWO SIGNIFICANT FIGURES)
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- Using a numerical integration method such as Simpson's rule, find the fraction of molecules in a sample of oxygen gas at a temperature of 250 K that have speeds between 100 m/s and 150 m/s. The molar mass of oxygen (O2) is 32.0 g/mol. A precision to two significant digits is enough.A sample containing 1.0 mole of oxygen gas initially at 45 degrees Celsius is heated to 110 degrees Celsius under isobaric conditions. From these given data, answer the questions that follows. What is the sample's change in internal energy (in KiloJoules)? What is the sample's change in enthalpy (in KiloJoules)?A sealed 19 m3 tank is filled with 7,011 moles of ideal oxygen gas (diatomic) at an initial temperature of 292 K The gas is heated to a final temperature of 490 K. The atomic mass of oxygen is 16.0 g/mol. The final pressure of the gas, in MPa, is closest to: answer round to 4 sig.fig
- A container is filled with an ideal diatomic gas to a pressure and volume of P₁ and V₁, respectively. The gas is then warmed in a two-step process that increases the pressure by a factor of four and the volume by a factor of five. Determine the amount of energy transferred to the gas by heat if the first step is carried out at constant volume and the second step at constant pressure. (Use any variable or symbol stated above as necessary.) Q =The Table shown gives experimental values of the pressure P of a given mass of gas corresponding to various values of the volume V. According to themodynamic principles, a relationship having the form PVk = C, wherek and C are constants, should exist betwoen the variables. Use the natural log (in) and linear regression to solve the following. 1) Find the value of k a) 0 64 b) 0.82 c) 0.78 d) 0.90 2) Find the value of C. a) 1125 b) 765 c) 995 d) 875 3) Estimate P when V = 100.0 in %3D a) 17.1 b) 31.5 c) 26.9 d) 39.9 TABLE V(in3) 59.5 61.8 72.4 88.7 118.6 244.9 P(bin?) 66.3 49.5 36.6 28.4 19.2 20.1 Write only the letter corresponding to the correct answer.The Ideal Gas Law is given by the equation: PV — пRT Where: P = pressure V = volume n = moles T = temperature in Kelvin In order to solve for the moles, n, you must multiply both sides of the equation by the same expression: PV × = nRT × The resulting equation is: n =
- A container is filled with an ideal diatomic gas to a pressure and volume of P1 and V1, respectively. The gas is then warmed in a two-step process that increases the pressure by a factor of two and the volume by a factor of three. Determine the amount of energy transferred to the gas by heat if the first step is carried out at constant volume and the second step at constant pressure. (Use any variable or symbol stated above as necessary.)A container is filled with an ideal diatomic gas to a pressure and volume of P1 and V1, respectively. The gas is then warmed in a two-step process that increases the pressure by a factor of five and the volume by a factor of four. Determine the amount of energy transferred to the gas by heat if the first step is carried out at constant volume and the second step at constant pressure. (Use any variable or symbol stated above as necessary.)The Table shown gives experimental values of the pressure P of a given mass of gas corresponding to various values of the volume V. According to thermodynamic principles, a relationship having the form PVk = C, where k and C are constants, should exist between the variables. Use the natural log (In) and linear regression to solve the following. 1) Find the value of k. a) 0.74 b) 0.86 c) 0.98 d) 1.33 2) Find the value of C. a) 812 b) 765 c) 880 d) 947 3) Estimate P when V = 100.0 in3 a) 18.9 b) 30.8 c) 24.7 d) 49.5 TABLE V(in3) 54.3 61.8 72.4 88.7 118.6 244.9 P(lb/in?) 61.2 49.5 36.6 28.4 19.2 20.1 Write only the letter corresponding to the correct answer.
- The Joule-Kelvin coefficient that determines the performance of a gas in a throttling process is defined as μ_JK = (∂T/∂p)_H where H is enthalpy. Show that μ_JK= 0 for an Ideal Gas. [HINT: You will need to form an expression for H, and use the differential calculus cyclic relation to correctly form this partial derivative for μJK]Attached Table gives experimental values of the molar enthalpy of nitrogen at 1 bar and 100 bars. Use this data to answer the following question about a nitrogen throttling process operating between these two pressures. (a) If the initial temperature is 300 K, what is the final temperature?If the ideal gas law (PV = kT) is used to find P when T and V are given, but there is an error of 0.3% in measuring T and an error of 0.8% in measuring V, find approximately the greastest percent error in P? TOPIC:TOTAL DIFFERENTATION