Read on to learn how many calories you need to burn each day. Energy balance is simply the relationship between your input ...

13.9 Specific latent heat of vaporisation (kJ/kg) 213 An input of 334,000 joules (J) of energy is needed to change 1 kg of ice into 1 kg of water. The same amount of energy needs to be taken out ...

you need to use 1,000 times (10 cubed) the power during that period.” In other words, raising an indoor temperature for a short period requires a heat pump to use more energy than maintaining it ...