Economic 1 Form Five Annual Exam 2026 Mbeya City
Economics 1 Form Five Annual Exam 2026 – Mbeya City: This is a Form Five Economics Paper 1 annual examination for Mbeya City Council, conducted in 2026.
The paper appears in the published Form Five Annual Examination 2026 for Mbeya City collection.
Economic 1 Form Five Annual Exam 2026 Mbeya City
DOWNLOAD EXAM
10. (a) A gas is confined in a cylinder fitted with a movable piston. The gas expands slowly while being heated so that its temperature remains constant.
(i) Name the thermodynamic process occurring in the gas. (3 marks)
(ii) Explain what happens to the internal energy of the gas and the work done by the gas during this process. (4 marks)
(iii)A gas expands isothermally and does 250 J of work. Determine the heat absorbed by the gas. (4 marks)
(b) A typical bedroom contains about 2500 moles of air. Find the change in internal energy of the room when air is cooled from 35°C to 26°C at a constant pressure of 1 atm. Treat the air as an ideal gas with γ=1.4 (4 marks)
