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1. What would be the effect on the enthalpy change determined if the temperature probe read...
What would be the effect on the enthalpy change determined if the temperature probe read lower...
What would be the effect on the enthalpy change determined if the temperature probe read lower than the true temperature? Explain? (this is just asking for an overall trend, nothing that requires specific data)
1. How will the calculated value for Cmetal be affected if the temperature probe always reads...
1. How will the calculated value for Cmetal be affected if the temperature probe always reads 1.5°C higher than the actual temperature over its entire range (higher, lower or unaffected)? Explain.
A temperature probe which follows first order behavior is subjected to a sudden temperature change occurs from 24.4 °C to 586 °C. After 3 seconds, the temperature of the probe is 341 °C. What is the t...
A temperature probe which follows first order behavior is subjected to a sudden temperature change occurs from 24.4 °C to 586 °C. After 3 seconds, the temperature of the probe is 341 °C. What is the time constant of this probe?
29 NEUTRALİZATION CALORIMETRY 3-THERMODYNAMICS: ENTHALPY OF EXERCISES 1. If the final te or eratu...
29 NEUTRALİZATION CALORIMETRY 3-THERMODYNAMICS: ENTHALPY OF EXERCISES 1. If the final te or erature taken in part I was higher than the true value, the calculated value for the heat capacity of the lower than the true value? calorimeter be higher than in the process of transferring the metal cylinder from the hot water to the in part II, the cylinder lost some heat, would the calculated value 2. If for the specific heat of the metal be higher or...
5. The enthalpy of solution for the dissolving of a KBr sample was determined following Part of the Experimental Pr...
5. The enthalpy of solution for the dissolving of a KBr sample was determined following Part of the Experimental Pro- cedure in this experiment. Complete the following table for Trial 1 (See Report Sheet) for determining the enthalpy of solution of KBr. Calculation Zone 5.00 Part 2 25.0 1. Mass of salt (8) 2. Moles of salt (mol) 5. Mass of water (8) 6. Initial temperature of water (°C) 7. Final temperature of mixture (°C) 250 Part 4 Part 5...
For an ideal gas, whose temperature increases from T1 to T2, what would be its enthalpy...
For an ideal gas, whose temperature increases from T1 to T2, what would be its enthalpy change? (a) Cv (T2-T1) (b) Cv (T1-T2) (c) Cp (T2-T1) if the heat capacities stay constant during the temperature range
Chemistry word question... In the thermodynamics lab, you determined the temperature at which your saturated Potassium...
Chemistry word question... In the thermodynamics lab, you determined the temperature at which your saturated Potassium Nitrate solution precipitated out of solution. If during this lab some of your Potassium Nitrate crystalized on your temperature probe and was no longer in solution, what effect would this have on your observed deltaG for the process?
I recently conducted an experiment looking at the enthalpy change in a decomposition reaction of hydrogen...
I recently conducted an experiment looking at the enthalpy change in a decomposition reaction of hydrogen peroxide using a catalyst (Iron (III) chloride) and am now writing a report for it. The literature states that the change in enthalpy for this reaction should be 94.6 kJ mol-1 (exothermically), whereas our experimentation determined the enthalpy change to be 100.7 kJ mol-1. In the discussion section, I am discussing how the calorimeter used would not create a 'perfect' environment and would still...
Enthalpy from a reaction What is the change in temperature when 3.00 grams of calcium chloride...
Enthalpy from a reaction
What is the change in temperature when 3.00 grams of calcium chloride is dissolved in 100 mL of water? 5.19 loc Given the change in the temperature from adding 3.00 grams of calcium chloride to 100.00 mL of water, calculate the enthalpy of solution for calcium chloride in units of kJ/mol. kJ/mol
2. The enthalpy change dh of an incompressible substance is given by: (5 pts) a. du...
2. The enthalpy change dh of an incompressible substance is given by: (5 pts) a. du + pdv b. du + vdp d. du RdT 3. The temperature of an ideal gas undergoing an adiabatic expansion through a throttling valve (S a. increases c. remains constant b. decreases d. cannot be determined 4. A device which decreases the pressure and increases the velocity is a (5 pts) a. fan c. diffuser b. mixing heat exchanger d. nozzle
1. How will the calculated value for Cmetal be affected if the temperature probe always reads 1.5°C higher than the actual temperature over its entire range (higher, lower or unaffected)? Explain.
29 NEUTRALİZATION CALORIMETRY 3-THERMODYNAMICS: ENTHALPY OF EXERCISES 1. If the final te or erature taken in part I was higher than the true value, the calculated value for the heat capacity of the lower than the true value? calorimeter be higher than in the process of transferring the metal cylinder from the hot water to the in part II, the cylinder lost some heat, would the calculated value 2. If for the specific heat of the metal be higher or...
5. The enthalpy of solution for the dissolving of a KBr sample was determined following Part of the Experimental Pro- cedure in this experiment. Complete the following table for Trial 1 (See Report Sheet) for determining the enthalpy of solution of KBr. Calculation Zone 5.00 Part 2 25.0 1. Mass of salt (8) 2. Moles of salt (mol) 5. Mass of water (8) 6. Initial temperature of water (°C) 7. Final temperature of mixture (°C) 250 Part 4 Part 5...
Enthalpy from a reaction
What is the change in temperature when 3.00 grams of calcium chloride is dissolved in 100 mL of water? 5.19 loc Given the change in the temperature from adding 3.00 grams of calcium chloride to 100.00 mL of water, calculate the enthalpy of solution for calcium chloride in units of kJ/mol. kJ/mol
2. The enthalpy change dh of an incompressible substance is given by: (5 pts) a. du + pdv b. du + vdp d. du RdT 3. The temperature of an ideal gas undergoing an adiabatic expansion through a throttling valve (S a. increases c. remains constant b. decreases d. cannot be determined 4. A device which decreases the pressure and increases the velocity is a (5 pts) a. fan c. diffuser b. mixing heat exchanger d. nozzle
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