Changes Of State And Specific Latent Heat (GCSE Physics)

When steam at 100 °C condenses on skin, why can it cause more severe burns than water at 100 °C?

A 250 g sample of steam condenses to water, releasing 5.1 × 10^5 J. What latent heat of vaporisation was used by the steam?

Which property explains why water has a high specific heat capacity compared with many other liquids?

A student measures energy input Q from an electrical heater by Q = V I t. Which instrument readings are needed?

A student finds the energy required to melt 0.2 kg of aluminium is 6.84 × 10^4 J. What latent heat of fusion did they calculate for aluminium?

A block of ice absorbs 10 000 J to melt completely. What mass of ice melts if the latent heat of fusion of ice is 3.34 × 10^5 J/kg?

A sealed container of water remains at 100 °C while boiling because:

Which equation gives the energy required to melt a mass m of ice (latent heat of fusion)?

A student heating ice measures time to melt under different insulating lids. They keep same mass of ice and same heater power. Which of these is a valid conclusion?

A 1.5 kg block of ice at 0 °C is placed in a warmer room. Which energy change occurs first as heat is added?

Which experimental error most directly affects the accuracy of a measured latent heat of vaporisation using mass loss and heater energy?