How much heat is absorbed if 45 grams of sweat is evaporated from someone's skin? dhvap for water at body temperature is 2.41 kj
1 answer:
Answer : 108 kJ of heat is absorbed
Explanation :
Enthalpy of vaporization of water at body temperature is 2.41 kJ/g
That means we need 2.41 kJ to evaporate 1 gram of sweat.
Let us use this as a conversion factor to find the amount of heat needed to evaporate 45 grams of sweat.
The equation can be set as follows.
Therefore we can say that 108 kJ of heat is absorbed when sweat is evaporated from someone's skin.
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Answer: The coefficient in front of AgCl when the equation is properly balanced is 2.
Explanation:
According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.
Decomposition is a type of chemical reaction in which one reactant gives two or more than two products.
Decomposition of silver chloride is represented as:
Thus the coefficient in front of AgCl when the equation is properly balanced is 2.