Binnie Thermochemistry Practice ANSWERS - binnie
... (w>0 work done on system, w<0 work done by system on surroundings) Energy is conserved (1st Law of thermodynamics) Energy is a state function (does not depend on history of sample, only present conditions) Kinetic Energy = ½ m v2 energy of motion, measured in Joules Potential Energy = stored energy ...
... (w>0 work done on system, w<0 work done by system on surroundings) Energy is conserved (1st Law of thermodynamics) Energy is a state function (does not depend on history of sample, only present conditions) Kinetic Energy = ½ m v2 energy of motion, measured in Joules Potential Energy = stored energy ...
Thermochem
... Surroundings - everything else Universe = system + surroundings Endothermic - energy in, system absorbs heat from the surroundings(+ enthalpy change). Exothermic - energy out, system loses heat to surroundings(- enthalpy change). ...
... Surroundings - everything else Universe = system + surroundings Endothermic - energy in, system absorbs heat from the surroundings(+ enthalpy change). Exothermic - energy out, system loses heat to surroundings(- enthalpy change). ...
Slide 1 - KaiserScience
... 15-5 Heat Engines We will discuss only engines that run in a repeating cycle; the change in internal energy over a cycle is zero, as the system returns to its initial state. The high temperature reservoir transfers an amount of heat QH to the engine, where part of it is transformed into work W and ...
... 15-5 Heat Engines We will discuss only engines that run in a repeating cycle; the change in internal energy over a cycle is zero, as the system returns to its initial state. The high temperature reservoir transfers an amount of heat QH to the engine, where part of it is transformed into work W and ...
Ch15Thermo (1)
... 15-5 Heat Engines We will discuss only engines that run in a repeating cycle; the change in internal energy over a cycle is zero, as the system returns to its initial state. The high temperature reservoir transfers an amount of heat QH to the engine, where part of it is transformed into work W and ...
... 15-5 Heat Engines We will discuss only engines that run in a repeating cycle; the change in internal energy over a cycle is zero, as the system returns to its initial state. The high temperature reservoir transfers an amount of heat QH to the engine, where part of it is transformed into work W and ...
File
... ordered fluid motion characterized by smooth streamlines is called laminar. The flow of high-viscosity fluids such as oils at low velocities is typically laminar. The highly disordered fluid motion that typically occurs at high velocities characterized by velocities fluctuations is called turbulent. ...
... ordered fluid motion characterized by smooth streamlines is called laminar. The flow of high-viscosity fluids such as oils at low velocities is typically laminar. The highly disordered fluid motion that typically occurs at high velocities characterized by velocities fluctuations is called turbulent. ...
Procedure
... aqueous NH3 with aqueous HCl to form aqueous ammonium chloride. 2. To use calorimetry to measure the heat of solution of ammonium chloride. 3. To calculate the heat of formation of solid ammonium chloride using these data and the known heats of formation of NH3 and HCl solutions. Discussion: When a ...
... aqueous NH3 with aqueous HCl to form aqueous ammonium chloride. 2. To use calorimetry to measure the heat of solution of ammonium chloride. 3. To calculate the heat of formation of solid ammonium chloride using these data and the known heats of formation of NH3 and HCl solutions. Discussion: When a ...
Heat pipe
A heat pipe is a heat-transfer device that combines the principles of both thermal conductivity and phase transition to efficiently manage the transfer of heat between two solid interfaces.At the hot interface of a heat pipe a liquid in contact with a thermally conductive solid surface turns into a vapor by absorbing heat from that surface. The vapor then travels along the heat pipe to the cold interface and condenses back into a liquid - releasing the latent heat. The liquid then returns to the hot interface through either capillary action, centrifugal force, or gravity, and the cycle repeats. Due to the very high heat transfer coefficients for boiling and condensation, heat pipes are highly effective thermal conductors. The effective thermal conductivity varies with heat pipe length, and can approach 7002100000000000000♠100 kW/(m⋅K) for long heat pipes, in comparison with approximately 6999400000000000000♠0.4 kW/(m⋅K) for copper.