1) Internal energy of a system consists of: a) kinetic and potential energies of particles b) heat and work c) heat and temperature 2) State quantities are: a) volume, heat, internal energy b) volume, internal energy, pressure c) pressure, temperature, heat 3) The unit of heat capacity is: a) J/K b) J/kg*K c) J/kg 4) The specific heat capacities of metals are generally: a) higher than sp. heat c. of water b) lower than sp. heat c. of water c) equal to sp. heat c. of water 5) If there is an equilibrium in a calorimeter: a) no state quantities change b) heat is released from the calorimeter c) the temperature is changing 6) In an isolated system there is a) no heat exchange but the particles go out/in b) no heat exchange and the particles can´t go out/in c) a heat exchange 7) Change in internal energy is equal to a) kinetic and potential energies of particles b) sum of work and temperature c) sum of work and heat 8) If a system absorbs heat from the surroundings: a) the heat is positive b) the heat is negative c) the heat is zero 9) If a work is done by the system: a) the work is positive b) the work is negative c) the work is zero 10) The convection of an internal energy is possible a) only in solids b) in all states of matter c) only in liquids and gases

Thermodynamics

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