On what factors does the required amount of heat depend to heat a given substance ?
Mass of substance, change in temperature and type of material.
During illness an $80\, kg$ man ran a fever of $102.2^o F$ instead of normal body temperature of $98.6^o F$. Assuming that human body is mostly water, how much heat is required to raise his temperature by that amount ………. $kcal$
At $100°C,$ the substance that causes the most severe burn, is
Boiling water is changing into steam. At this stage the specific heat of water is
A body of mass $5 \,kg$ falls from a height of $30$ metre. If its all mechanical energy is changed into heat, then heat produced will be…….. $cal$
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