Explanation

Explanation

• Latent heat of fusion is the heat required to change ice into water at 0°C.
• For ice, it is approximately 80 cal/g.
• In SI units, it is about 334 J/g.
• During melting, the temperature remains constant.
• The heat is used to change the state of matter, not raise its temperature.

Explanation

• Boyle’s Law states that pressure and volume are inversely proportional.
• It applies when temperature remains constant.
• Formula: P∝ 1/v
• Therefore, PV = constant
• If volume decreases, pressure increases, and vice versa.

Explanation

• Phase change: Ice turns from a solid into a liquid.
• Melting point: The constant temperature at which this change happens is 0 degrees Celsius (32 degrees Fahrenheit)
• Heat absorption: Ice takes in heat energy to break its rigid crystal structure
• Constant temperature: The temperature stays at 0 °C until all the ice melts.

Explanation

• Aluminium is more reactive than silver.
• Aluminium forms very stable compounds with oxygen.
• Therefore, it requires electrolysis for extraction.
• Silver is less reactive and is easier to extract from its ores.
• Hence, aluminium extraction is more difficult than silver extraction.