Question

How do you define ‘heat’ and ‘temperature’?

Answer 1

Answer:

Heat describes the transfer of thermal energy between molecules within a system and is measured in Joules. Heat measures how energy moves or flows. An object can gain heat or lose heat, but it cannot have heat. Heat is a measure of change, never a property possessed by an object or system. Therefore, it is classified as a process variable.

Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (°C), Kelvin(K), Fahrenheit (°F), or Rankine (R). It is a measurable physical property of an object—also known as a state variable. Other measurable physical properties include velocity, mass, and density, to name a few.

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Answer 2

• heat is a form of energy, while temperature is how hot or cold something is.
• SI unit of heat joules
• SI unit of temperature celcius kelvin