Question 1
Refer to the experimental scenario below. Explain how thermal energy is transferred between the aluminium and water until thermal equilibrium is achieved.
Worked answer
🔒 Start free to see full answer
Physics · Unit 1 · Heating processes · Kinetic particle model and specific heat capacity
Explain the process in which thermal energy is transferred between two systems until thermal equilibrium is achieved, and recognise the relevance of this to the laws of thermodynamics.
Practise this objective
AI-marked practice questions tied to QCAA mark schemes for this exact LO. Free to start.
Start free practicePractice questions for this objective
Full questions, answers and worked solutions unlock when you start a free practice session.
Question 2
A copper block of mass 500 g at an initial temperature of 85°C is placed in thermal contact with an aluminium block of mass 300 g at an initial temperature of 20°C. The two blocks are insulated from their surroundings. Explain how thermal energy is transferred between the two blocks until thermal equilibrium is achieved, and identify the relevance of this process to the laws of thermodynamics.
Worked answer
🔒 Start free to see full answer
More in Kinetic particle model and specific heat capacity
← Previous
Explain that the change in the internal energy of a system is equal to the energy added or removed by heating plus the work done on or by the system, and recognise this as the first law of thermodynamics and that this is a consequence of the law of conservation of energy.
Next →
Explain, in terms of the internal energy of a system and the kinetic particle model of matter, why the temperature of a system remains the same during the process of state change.