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Question 6 12 pts The specific heat of a fluid is given as cp -4.18 J/g.degC....
LAB 10 PRE LAB WORKSHEET Specific Heat Capacity (C) The energy transferred as heat that is...
LAB 10 PRE LAB WORKSHEET Specific Heat Capacity (C) The energy transferred as heat that is required to raise the temperature of 1 gram of a substance by 1 kelvin. q= - m x Cp X AT q=heat lost or gained, m= mass of solution (grams) Cp = the Specific Heat Capacity of a compound (J/g x °C)) AT = Tfinal-Tinitial AHsolution = 9 moles of salt 1. If 1.25 g of ammonium nitrate (NH4NO3) is dissolved in 25.0 mL...
A cycle where the working fluid is air (R = 287 J/kgK, k = Cp/Cv =...
A cycle where the working fluid is air (R = 287 J/kgK, k = Cp/Cv = 1.4) consists of the following processes 12 adiabatic compression from 100 kPa and 15 Celcious to 2 MPa 23 constant pressure heat addition to 1200Celcioius 34 adiabatic expansion 41 constant volume heat rejection Draw the cycle on the P-v Diagram and calculate heat addition and heat rejection work consumed and work produced technical work consumed and technical work produced the...
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3...
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3 is compressed adiabatically in a piston-cylinder device from T1-300 K, pi = 1 bar to p2 = 10 bar at a constant external pressure Pext"- P2 -10 bar. Calculate the final temperature, T2, and W, Q. AU, AH for this process. 2. (20 pts.) Repeat problem 1 for an adiabatic and reversible compression. 3. (20 pts.) A rigid, insulated tank is divided into two...
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it...
part a. The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 110 J of heat. As it expands, it does 79 kJ of work. What is the change in internal energy for the system? Express the energy in kilojoules to two significant figures. part b. When fuel is burned in a cylinder equipped with a piston, the volume expands from 0.235 L to 1.350 L against an external pressure of 1.02 atm...
Question 5 (2.0 pts) Assume that Cp for an ideal gas is given by co(T) =...
Question 5 (2.0 pts) Assume that Cp for an ideal gas is given by co(T) = 0.9 + 2.5 x 10-* T, in kJ/kg-K, where is the temperature in Kelvin. (Use the gas constant R = 0.3 kJ/kg-K) (a) (+0.4) Derive an expression for Cy as a function of temperature. The gas undergoes an isochoric process from a temperature T, = 400 K to T2 = 500 K. Calculate the change in (b) (+0.6) enthalpy, in kJ/kg, (c) (+0.6) entropy,...
1. (8 pts) Virtually every pchem textbook has a table of enthalpy values for 25°C. One...
1. (8 pts) Virtually every pchem textbook has a table of enthalpy values for 25°C. One use for these may be to calculate the enthalpy for a phase change such as compounds boil at 25°C. You are going to calculate the percent difference between the heat of vaporization of ethanol using data for 25°C and that at its boiling point of 78°C. boiling. However, not too many a) Write the chemical equation that shows the vaporization of 1 mol of...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the...
1.) The specific heat of a certain type of metal is 0.128 J/(g⋅∘C). What is the final temperature if 305J of heat is added to 41.7 g of this metal, initially at 20.0 ∘C? 2.) When 1723 J of heat energy is added to 42.3 g of hexane, C6H14, the temperature increases by 18.0 ∘C. Calculate the molar heat capacity of C6H14 3.) Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum) are...
12:47 1 Exit Question 1 0.5 pts When 34.8 g of sodium chloride is dissolved in...
12:47 1 Exit Question 1 0.5 pts When 34.8 g of sodium chloride is dissolved in water, 2.31 kJ of energy is absorbed. Is the enthalpy of dissolution of NaCl exothermic or endothermic? Endothermic Exothermic Question 2 0.5 pts What is the balanced thermochemical equation for the combustion of two moles of gaseous acetylene, C2H2, with oxygen to produce carbon dioxide and water vapor at 24.59°C given that 2512 kJ of heat is released at a constant pressure of 1.14...
pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa...
pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa and 350K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa and volume is maintained at same. The boundary work done during this process is (a) 1080 kJ (b) 840 k (c)240 k 2. A heat engine receives heat from a source at 727°C and rejiects the waste heat to a sink at 27°C,...
solve only circle mark 5 question . must be solve all . I will rate ....
solve only circle mark 5 question . must be solve all
. I will rate .
向 ti tuLihiot engines A and B are operated in succession. The first one, A roceives heat rejects to sink at T,K The second engine 石-300K. If the work outputs of two engines are equal, then the value of T, is (a) 100K from a source at T, -800K and e B receives lheat rejected by the first engine and rejects to another sink...
LAB 10 PRE LAB WORKSHEET Specific Heat Capacity (C) The energy transferred as heat that is required to raise the temperature of 1 gram of a substance by 1 kelvin. q= - m x Cp X AT q=heat lost or gained, m= mass of solution (grams) Cp = the Specific Heat Capacity of a compound (J/g x °C)) AT = Tfinal-Tinitial AHsolution = 9 moles of salt 1. If 1.25 g of ammonium nitrate (NH4NO3) is dissolved in 25.0 mL...
I. (30 pts.) One mole of an ideal gas with constant heat capacities and ? 5/3 is compressed adiabatically in a piston-cylinder device from T1-300 K, pi = 1 bar to p2 = 10 bar at a constant external pressure Pext"- P2 -10 bar. Calculate the final temperature, T2, and W, Q. AU, AH for this process. 2. (20 pts.) Repeat problem 1 for an adiabatic and reversible compression. 3. (20 pts.) A rigid, insulated tank is divided into two...
Question 5 (2.0 pts) Assume that Cp for an ideal gas is given by co(T) = 0.9 + 2.5 x 10-* T, in kJ/kg-K, where is the temperature in Kelvin. (Use the gas constant R = 0.3 kJ/kg-K) (a) (+0.4) Derive an expression for Cy as a function of temperature. The gas undergoes an isochoric process from a temperature T, = 400 K to T2 = 500 K. Calculate the change in (b) (+0.6) enthalpy, in kJ/kg, (c) (+0.6) entropy,...
1. (8 pts) Virtually every pchem textbook has a table of enthalpy values for 25°C. One use for these may be to calculate the enthalpy for a phase change such as compounds boil at 25°C. You are going to calculate the percent difference between the heat of vaporization of ethanol using data for 25°C and that at its boiling point of 78°C. boiling. However, not too many a) Write the chemical equation that shows the vaporization of 1 mol of...
12:47 1 Exit Question 1 0.5 pts When 34.8 g of sodium chloride is dissolved in water, 2.31 kJ of energy is absorbed. Is the enthalpy of dissolution of NaCl exothermic or endothermic? Endothermic Exothermic Question 2 0.5 pts What is the balanced thermochemical equation for the combustion of two moles of gaseous acetylene, C2H2, with oxygen to produce carbon dioxide and water vapor at 24.59°C given that 2512 kJ of heat is released at a constant pressure of 1.14...
pts per question) 1. A 2 m piston cylinder device contains nitroen gas at 200 kPa and 350K. Now heat is transferred to the nitrogen in the tank and the pressure of nitrogen rises to 900 kPa and volume is maintained at same. The boundary work done during this process is (a) 1080 kJ (b) 840 k (c)240 k 2. A heat engine receives heat from a source at 727°C and rejiects the waste heat to a sink at 27°C,...
solve only circle mark 5 question . must be solve all
. I will rate .
向 ti tuLihiot engines A and B are operated in succession. The first one, A roceives heat rejects to sink at T,K The second engine 石-300K. If the work outputs of two engines are equal, then the value of T, is (a) 100K from a source at T, -800K and e B receives lheat rejected by the first engine and rejects to another sink...
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