Changes Of State And Specific Latent Heat (GCSE Physics)

Which experiment would give a direct measurement of the latent heat of fusion of a solid?

A student measures the mass of water before and after boiling to find the mass evaporated. Which measurement change gives the best estimate of the mass evaporated?

Which of the following best describes specific latent heat?

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?

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

A 0.5 kg block of ice at 0 °C is completely melted. The specific latent heat of fusion of ice is 334 000 J/kg. How much energy is needed?

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

A student uses a joulemeter and measures voltage, current and time to find energy input to boil water. Which result will most affect the uncertainty in a calculated latent heat value?

When ice at 0 °C melts to liquid water at 0 °C, which of the following describes what happens to the energy added?

When a substance freezes, what happens to the internal energy and particle arrangement?