Thermodynamics and Heat Transfer Exam Bundle Graded A+

Thermodynamics - ANSWER-Deals with the conversion of energy from one form to another, the direction of the flow of heat, and the availability of energy to do work. therme - ANSWER-Greek word - heat dynamis - ANSWER-Greek word - power Zeroth Law - ANSWER-If two closed system with different t...

What are the 3 types of heat transfer? - ANSWER-conduction, convection, radiation What is conduction? - ANSWER-transfer of energy from one place to another by direct contact What is convection? - ANSWER-The transfer of heat by the movement of a fluid What is radiation? - ANSWER-the transfer...

Thermodynamics - ANSWER-The study of heat and transformation into mechanical energy 1st Law of Thermodynamics - ANSWER-States that whenever heat is added to a system, it transforms to an equal amount of some other form of energy Internal energy - ANSWER-The total microscopic energy of an objec...

- Heat and work are two different ways of transferring energy from one system to another. - ANSWER-The the distinction between Heat and Work is important in the field of thermodynamics. Heat - ANSWER-is the transfer of thermal energy between systems, while work is the transfer of mechanical energ...

Explain the relationships between the four temperature scales: Fahrenhiet Celsius Rankine Kelvin - ANSWER-triple point of water; where the vapor, solid, and liquid phases exist together in thermodynamic equilibrium. 273.16 Kelvin or 491.69 degree Rankine. T(R)=1.8T(K) The Celsius scale is d...

Know the principle of conservation of energy and apply it to energy transfers - ANSWER-Energy cannot be created nor destroyed, it however be converted to a different form. Law of Conservation of Energy (also known as First Law of Thermodynamics) - ANSWER-in the middle of the 19th century, it was ...

Three methods of heat transfer? - ANSWER-Conduction, convection, and radiation are three ways to transfer energy. conduction - ANSWER-the transfer of thermal energy by collisions between particles that make up matter. The direct transfer of heat from one substance to another substance that it i...

What is Heat Transfer? - ANSWER-Heat Transfer is the transfer of thermal energy due to temperature difference Difference between thermodynamics and heat transfer - ANSWER-Thermodynamics deals with equilibrium state and changes from one equilibrium state to another. Heat transfer deals with system...

What is the difference between heat and temperature? - ANSWER-Temperature is the measure of how hot or cold something is compared to a reference point, where as heat is the transfer of thermal energy from one object to another What is thermal equilibrium? - ANSWER-It is the state in which two obj...

first law of thermodynamics - ANSWER-energy cannot be created or destroyed Heat cannot be "made" but other forms of energy can be ____________. - ANSWER-converted to heat second law of thermodynamics states "to cause heat energy to travel, a ____________ must be established and maintained....

open system - ANSWER-A system in which matter can enter from or escape to the surroundings. closed system - ANSWER-a system in which matter and energy exchanges do not occur across boundaries Control Volume - ANSWER-A region of space through which mass may flow Phase - ANSWER-- Quantity of ...

Conduction - ANSWER-The transfer of heat within an object or between objects by molecular activity, without any net external motion Convection - ANSWER-Process by which, in a fluid being heated, the warmer part of the mass will rise and the cooler portions will sink. Energy - ANSWER-The abilit...

System - ANSWER-rigid body bounded by certain boundaries Surroundings - ANSWER-everything external to the system Boundary - ANSWER-interface between the system and the environment Closed system - ANSWER-always contains the same matter. Allows energy transfer but there can be no transfer of ...

mass, position, velocity, acceleration, energy, momentum - ANSWER-In mechanics we deal with quantities such as? Heat energy - ANSWER-What happens to the energy of a ball when we drop it on the floor? It goes into? Thermodynamics - ANSWER-deal with quantities which describe our system, usually ...

First Law of Thermodynamics - ANSWER-energy can be transferred and transformed, but it cannot be created or destroyed the total internal energy of a system is equal to the amount of heat added minus the work done on the system First Law of Thermodynamics Equation - ANSWER-delta U=Q-W Q= hea...

What is *energy*? - ANSWER-The capacity to do work. What is *kinetic energy*? - ANSWER-Energy of motion. What is *temperature*? - ANSWER-The measure of the *average* kinetic energy of the molecules (or atoms) in substance. What is *heat*? - ANSWER-Energy that flows from hotter to colder sub...

The temperature of an object depends on what three things? - ANSWER-1. temperature and condition of skin 2. quantity of sample 3. properties of sample temperature - ANSWER-measurement of the average KE of the particles in a substances another name for internal energy - ANSWER-thermal energy ...

The second law of thermodynamics states that - ANSWER-heat naturally transfers from bodies of higher temps to bodies of lower temps 3 types of heat transfer - ANSWER-1. Conduction 2. Convection 3. Radiation conduction - ANSWER-the transfer of heat into or through a material by direct molecul...

This picture illustrates which of the following forms of heat transfer ? - ANSWER-Radiation This picture illustrates which of the following forms of heat transfer ? - ANSWER-Conduction This picture illustrates which of the following forms of heat transfer ? - ANSWER-Convection Heat transfer...

Calculate Internal Energy and what corresponds when system does not exchange work? - ANSWER-The change in Internal Energy (of a closed system) is the difference of the heat added to the system and the work done by the system. When work done by the system is 0, it is an isolated system: meaning no he...

Thermal Energy - ANSWER-the total energy of all the atoms a molecules in a substance. Consists of both kinetic and potential energy. In general, the warmer an object is the more kinetic energy its atoms and molecules possess. The warmer an object gets the more thermal energy it contains. Temperat...

Total Energy (E) - ANSWER-the sum of the all of the different forms of energy Kinetic Energy (KE) - ANSWER-energy that a system possesses as a result of its motion relative to some reference frame Potential Energy (PE) - ANSWER-energy that a system possesses as a result of its elevation in a g...

Heat Transfer - ANSWER-The transfer of energy due to a temperature gradient Thermal Energy - ANSWER-The form of energy that can be transferred from one system to another via heat transfer Heat - ANSWER-- Thermodynamic definition: Heat = Heat transfer (heat the water on the stove) - Heat trans...

What are open and closed systems? - ANSWER-Closed systems (control mass) are those in which a fixed amount of mass is contained (no mass can cross the system boundary). The system boundary can be fixed or movable. Energy may cross the boundary. In an open system (control volume), mass and energy ...

Thermodynamics - ANSWER-is the science that deals with heat and work and those properties of substances that bear a relation to heat and work Thermodynamic System - ANSWER-quantity of matter or region in space of interest Closed System - ANSWER--No mass transfer across boundary -(control mass...

Different Forms of Energy - ANSWER-Thermal, mechanical, kinetic, potential, electric, magnetic, chemical, and nuclear Macroscopic Energy - ANSWER-The forms of energy a system possesses as a whole with respect to an outside reference frame, such as kinetic or potential energies Microscopic Ener...