Question

pls answer this question.
question no.3,4​

Answer 1

1)

S.I unit of Heat is joule (J)

1 calorie = 4.184 J

2)

where we touch the ice,it absorbs the heat from our hands, melts and gets evaporated from the heat (i.e, the latent heat of vapourization)

Hence, we feel cold when we touch ice with our hands

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Answer 2

1. joules and a calorie is the amount of energy or heat
2. one calorie is equal to the 4.184,a common unit of energy used in the physical science

because of the melting and evaporation of ice. when we touch ice, the ice quickly absorb heat of our hand and melt and evaporate it. so we feel cold when we touch ice

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