Neco Model Questions Vol1 2023 Physics Question 8

Practice essay / theory question 8 from the 2023 Neco Model Questions Vol1 Physics examination. This question covers Heat .

Neco Model Questions Vol1 2023 Physics Essay / Theory

Topic: Heat

Question 8 NECO_MODEL_QUESTIONS_VOL1 • 2023 • PHYSICS • essay

A 0.500 kg block of copper at 150°C is placed into a calorimeter containing 0.200 kg of water at 25°C. The calorimeter (including its lid) has a heat capacity of 0.050 kJ·°C⁻¹. The specific heat capacities are: copper 0.385 kJ·kg⁻¹·K⁻¹, water 4.18 kJ·kg⁻¹·K⁻¹. Assume no heat is lost to the surroundings. The same calorimeter is later used in a series of thermodynamic investigations.

Question Parts

( a )

Determine the final equilibrium temperature of the copper–water–calorimeter system.

( b )

If after reaching the equilibrium temperature the copper block is allowed to melt completely, calculate the amount of heat required for the phase change. State whether the calorimeter can supply this heat without the temperature of the water falling below 0°C. (Latent heat of fusion of copper = 205 kJ·kg⁻¹.)

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Neco Model Questions Vol1 2023 Physics Question 8. It is one of the essay questions from the 2023 Neco Model Questions Vol1 Physics examination.

The question covers Heat .

View More Neco Model Questions Vol1 2023 Physics Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Chat with Support