Thermodynamics

Q. Which of the following is an example of conduction?
  • A. Boiling water
  • B. Heating a metal rod
  • C. Sun warming the Earth
  • D. Wind blowing
Q. Which of the following is an example of convection?
  • A. Heating a metal rod in a flame
  • B. Boiling water in a pot
  • C. Sunlight warming the ground
  • D. Ice melting in a drink
Q. Which of the following is an example of forced convection?
  • A. Heat transfer in a pot of boiling water
  • B. Heat transfer from a radiator
  • C. Heat transfer from a hot cup of coffee
  • D. Heat transfer in a still air room
Q. Which of the following is an example of heat transfer by radiation?
  • A. Heating a metal rod in a flame
  • B. Sunlight warming the Earth
  • C. Boiling water in a pot
  • D. Heating air in a room
Q. Which of the following is the best conductor of heat?
  • A. Air
  • B. Water
  • C. Copper
  • D. Wood
Q. Which of the following materials has the highest thermal resistance?
  • A. Copper
  • B. Aluminum
  • C. Glass Wool
  • D. Steel
Q. Which of the following materials is the best conductor of heat?
  • A. Wood
  • B. Air
  • C. Copper
  • D. Glass
Q. Which of the following processes involves a change in temperature?
  • A. Isothermal process
  • B. Adiabatic process
  • C. Isobaric process
  • D. Isochoric process
Q. Which of the following processes is adiabatic?
  • A. Heating a gas in a closed container
  • B. Compressing a gas without heat exchange
  • C. Cooling a gas at constant pressure
  • D. Evaporating water at room temperature
Q. Which of the following processes is an example of an adiabatic process?
  • A. Heating water in a kettle
  • B. Compressing a gas in a piston without heat exchange
  • C. Melting ice at room temperature
  • D. Boiling water
Q. Which of the following processes is an example of an isothermal process?
  • A. Heating a gas in a closed container
  • B. Compressing a gas without heat exchange
  • C. Melting ice at 0°C
  • D. Cooling a gas at constant pressure
Q. Which of the following processes is not a thermodynamic process?
  • A. Isothermal
  • B. Adiabatic
  • C. Isochoric
  • D. Static
Q. Which of the following processes is not governed by the First Law of Thermodynamics?
  • A. Isothermal expansion
  • B. Adiabatic compression
  • C. Isochoric heating
  • D. None of the above
Q. Which of the following statements is true about an ideal gas?
  • A. It has no intermolecular forces
  • B. It behaves according to the ideal gas law at all temperatures
  • C. It can be liquefied at any temperature
  • D. Its specific heat is constant
Q. Which of the following statements is true about entropy?
  • A. Entropy is a measure of disorder
  • B. Entropy decreases in irreversible processes
  • C. Entropy is constant in reversible processes
  • D. Both a and c are true
Q. Which of the following statements is true about thermal equilibrium?
  • A. Heat flows from cold to hot
  • B. Heat flows from hot to cold
  • C. No heat flow occurs
  • D. Temperature is irrelevant
Q. Which of the following statements is true for an ideal gas?
  • A. The internal energy depends on temperature only
  • B. The internal energy depends on volume and pressure
  • C. The internal energy is constant at all temperatures
  • D. The internal energy is independent of temperature
Q. Which of the following statements is true regarding the first law of thermodynamics?
  • A. It applies only to closed systems.
  • B. It is a statement of conservation of energy.
  • C. It can be violated under certain conditions.
  • D. It only applies to mechanical systems.
Q. Which of the following statements is true regarding the second law of thermodynamics?
  • A. It allows for the conversion of heat into work with 100% efficiency
  • B. It states that energy can be created from nothing
  • C. It introduces the concept of entropy
  • D. It applies only to mechanical systems
Q. Which of the following surfaces is the best emitter of radiation?
  • A. Shiny surface
  • B. Dull black surface
  • C. White surface
  • D. Transparent surface
Q. Which of the following surfaces is the best emitter of thermal radiation?
  • A. Shiny metal
  • B. White paint
  • C. Black paint
  • D. Glass
Q. Which process involves a change in temperature due to heat transfer?
  • A. Isothermal process
  • B. Adiabatic process
  • C. Isobaric process
  • D. Isochoric process
Q. Which process involves a change in temperature without a change in heat content?
  • A. Isothermal process
  • B. Adiabatic process
  • C. Isochoric process
  • D. Isobaric process
Q. Which process involves a change in temperature without a change in phase?
  • A. Melting
  • B. Boiling
  • C. Heating
  • D. Condensation
Q. Which process involves the transfer of heat through the movement of fluids?
  • A. Conduction
  • B. Convection
  • C. Radiation
  • D. Insulation
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