P1 3.0 / 5 based on 1 rating ? PhysicsHeating housesGCSEOCR Created by: gumsCreated on: 27-07-15 22:47 Which statement about units is correct? Temperature is measured in °C and energy in J 1 of 5 The specific heat capacity of water is 4181 J/kg/°C and that of lead is 128 J/kg/°C. This means: More energy is needed to heat water than is needed to heat the same mass of lead by the same amount 2 of 5 As a solid melts: its temperature stays the same 3 of 5 The specific latent heat of melting for lead is 22.4 kJ/kg and that of oxygen is 13.9 kJ/kg. This means: more energy is needed to melt lead than is needed to melt oxygen 4 of 5 Which equation is correct? energy = mass x specific heat capacity x change in temperature 5 of 5
Comments
No comments have yet been made