Five lbs of propane is contained in a closed, rigid tank initially at 80 lbf/in.2, 150°F. Heat transfer occurs until the final temperature in the tank is 0°F. Kinetic and potential energy effects are negligible. Determine the amount of energy transfer by heat, in Btu. i292.5 Btu
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- A chemical reaction takes in a container of cross-sectional area 100cm^2. As a result of the reaction, the piston is pushed through 10cm against the external force 101.325kPa calculate the work done by the systemA 1.000-g gaseous mixture of CH4 and C2H6 at 1 bar and 298 K is burned in a bomb calorimeter. The calorimeter contains 1.500 kg of water initially at 25.00oC. After equilibrium is reached by the system, the final temperature is 33.00oC. The heat capacity of the calorimeter is 318.0 J/oC. The specific heat capacity of water is 4.186 J/g-oC. Calculate the % volume analysis of the fuel. Please provide COMPLETE solution. it should have final answer. not only formulas Tnx..Q1) A constant volume tank contain 1 mole ofC7H14and 12 mole of O2 gas at a temperature of 25 °C and 1 bar. The contents of the tank is ignited and C7H14 is burned completely and final products temperature is found to be 1700 K. Determine the heat transfer during this process. ( take daltaHo = -47800 kJ/kg).
- A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1atm . The cylinder is also submerged in a large insulated water bath. (See sketch at right.) From previous experiments, this chemical reaction is known to absorb 201.kJ of energy. The position of the piston is monitored, and it is determined from this data that the system does 121.kJ of work on the piston during the reaction.Q1) A constant volume tank contain 1 mole of C,H14 and 12 mole of O2 gas at a temperature of 25 °C and 1 bar. The contents of the tank is ignited and C8H18is burned completely and final products temperature is found to be 1700 K. Determine the heat transfer during this process. ( take AHo = -47800 kJ/kg).calculate the heat gained by the water: Q=CmΔT heat lost by sample: ms* cs *(Ts-T) = mw *cw (T -Tcw) + mc *cc *(T-Tcw) solve for the specific heat of the unknown known unknown (ms) mass of unknown= 240.40g (Cs) specific heat of sample: ? (Ts) Temp initial of sample: assume 100°C (mc) mass of dry cup: 31.3g (mw) mass of water: 127.3g (cw) specific heat of water: 4186 J/kg °C (Tcw) initial temp of water: 12°C (Cc) specific heat of cup: use Aluminium 900 J/kg °C (T) final temp 23°C (I tried it and I'm not sure if I have a correct answer, so if you can please do it step by step to show me where I made mistakes)
- A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. The cylinder is also submerged in a large insulated water bath. (See sketch at right.) The temperature of the water bath is monitored, and it is determined from this data that 252. kJ of heat flows out of the system during the reaction. The position of the piston is also monitored, and it is determined from this data that the piston does 337. kJ of work on the system during the reaction.A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.70 kg of water at 37.5C. During the reaction 92.8kJ of heat flows out of the flask and into the bath. Calculate the new temperature of the water bath. Heat capacity of water is 4.18J.g-1.K-1. Round your answer to 3A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns then into gaseaous products. the cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of 1 atm. the cylinder is also submerged in a large insulated water bath. From previous experiments, this chemical reaction is known to release 173.kJ of energy. the temperature of the water bath is monitored, and it is determined from this data that 37.2kJ of heat flows out of the system during the reaction. Is the reaction exothermic or endothermic? Does the temperature of the water bath go up or down? Does the piston move in or out? Does the gas mixture do work, or is work done on it? How much work is done on (or by) the gas mixture? Round your answer to 3 significant digits.
- A gaseous fuel mixture contains 23.4 %% methane (CH4)(CH4), 40.1 %% ethane (C2H6)(C2H6), and the rest propane (C3H8)(C3H8) by volume. Part A When the fuel mixture contained in a 1.51 LL tank, stored at 746 TorrTorr and 298 KK, undergoes complete combustion, how much heat is emitted? (Assume that the water produced by the combustion is in the gaseous state.) Standard Enthalpies (or Heats) of Formation (ΔfH∘ΔfH∘) at 298 KK Formula ΔfH∘kJmol−1ΔfH∘kJmol−1 CH4(g)CH4(g) −−74.6 C2H6(g)C2H6(g) −−84.68 C3H8(g)C3H8(g) −−103.85 O2(g)O2(g) 0.0 CO2(g)CO2(g) −−393.5 H2O(g)H2O(g) −−241.8 Express your answer to three significant figures and include the appropriate units.a sample of 98g of pure sulfuric acid is dissolved in 2.0 kg of water in an insulated vessel at 15°C, and thetemperature rises rapidly because of the process of forming the solution. The reaction is summarized in theequation H2SO4(l) -> H+(aq) + HSO4 –(aq). Estimate the temperature change assuming that the heat capacityof the solution is 4.0 J/gK and the heat capacity of the vessel is 300 J/K.A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gaseous products. The cylinder has a piston that moves in or out, as necessary, to keep a constant pressure on the mixture of the 1 atm. The cylinder is also submerged in a large insulated water bath. From previous experiments, this chemical reaction is known to absord 105. kj of energy. The position of the piston is monitored, and it is determined from this data that the piston does 255. kj of work on the system during the reaction. Is the reaction exothermic or endothermic? (exothermic or endothermic) Does the temperature of the water bath go up or down? (up, down, neither) Does the piston move in or out? (in, out, neither) Does heat flow into or out of the gas mixture? (in, out, neither) How much heat flows? Round your answer to 3 significant digits.