The heat Q transferred to change a substance's temperature depends on which three factors?
AMass, specific heat, and temperature change
BVolume, pressure, and specific heat
CMass, density, and temperature change
DSpecific heat, volume, and pressure change
Answer & Solution
Correct answer: A. Mass, specific heat, and temperature change
1. The heat needed to change a substance's temperature depends on the mass of the substance, the size of the temperature change, and a physical property tied to its phase.
2. That physical property is specific heat, so the three factors are mass, specific heat, and temperature change.
3. Volume and pressure are not part of the Q = mcΔT relationship.
4. Density is related to mass and volume together, but the direct factors named are mass, specific heat, and temperature change, not density.
5. So mass, specific heat, and temperature change are correct.
_Source: OpenStax Physics (CC BY 4.0), Ch 11 "Thermal Energy, Heat, and Work", section 11.2 Heat, Specific Heat, and Heat Transfer_
Keep practising Thermal Energy, Heat, and Work
Browse all Thermal Energy, Heat, and Work questions for GCE O-Level (Singapore), or explore more Physics topics.
Related questions
A 3.00 kg sample at its boiling point is entirely boiled away by 5360 kJ of heat. What is How much energy is required to melt 7.00 kg of aluminum already at its melting point? Use In which phases of matter can the particles change position relative to their neighbours?How is latent heat defined?If 2500 kJ of heat is just enough to melt 3.0 kg of an unknown substance, what is that subHow much energy is needed to melt 2.00 kg of ice already at 0 degrees Celsius? Use Lf(wateHow much heat is needed to vaporize 1.000 kg of water already at 100 degrees Celsius? Use How much heat is needed to melt 1.000 kg of ice already at 0 degrees Celsius? Use the late