A student measures the temperature change for an exothermic reaction and for an endothermic reaction.
The student uses an open glass beaker instead of a polystyrene cup with a lid.
How does this affect the size of the temperature changes the student measures?
| Temperature rise for the exothermic reaction | Temperature fall for the endothermic reaction | |
|---|---|---|
| A | smaller | smaller |
| B | smaller | larger |
| C | larger | smaller |
| D | larger | larger |
Row A
Row B
Row C
Row D
51 exam-style questions on OCR GCSE Chemistry 3.2 Energetics, covering 3.2.1 Exothermic and endothermic reactions and reaction profiles and 3.2.2 Calculating energy change from bond energies. Each one has a worked solution and a mark scheme showing where the marks go.