What do you think is more important for understanding the energy content of foods, enthalpy or...

What do you think is more important for understanding the energy content of foods, enthalpy or internal energy?

Expert Solution

Enthalpy is nothing but the total heat content ofa syste.(here:food)

internal energy :

Internal Energy (E) measures the energy state of a system as it undergoes chemical and/or physical processes.

The relationship between the internal energy of a system and its heat and work exchange with the surroundings is:

E = q + w

and relation between enthalpy and internal energy is

H= E + pEV

we can actually calculate caklorific energy value of food from H

so from formula H = m C T the energy released from food can be measured.

so H is more related to energy of food

queen_honey_blossom answered 2 years ago

A. Do you think the enthalpy of a methane combustion is more or less negative than...

A. Do you think the enthalpy of a methane combustion is more or less negative than the enthalpy of a reaction for methanol combustion? Why? B. Do you think the enthalpy of an ethanol combustion is more or less negative than the enthalpy of a reaction for a methanol combution? Why?

What do you think of Amazon's acquisition of Whole Foods?

1)What do you think was more important for manufacturing growth in the United States in the...

1)What do you think was more important for manufacturing growth in the United States in the early period: supply or demand factors, or a mix of both? 2)Should U.S. public policy aim to raise population growth (through either a higher birth rate or increased immigration) back to the high population growth rates seen earlier in U.S. history? Why or why not? 3)Do you think the Homestead Act was optimal as formulated? Or should it have been expanded or shrunk or...

Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical...

Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical reactions involve changes in enthalpy, ΔH, which can be measured and calculated: ΔHrxn∘=∑productsmΔHf∘−∑reactantsnΔHf∘ where the subscript "rxn" is for "enthalpy of reaction" and "f" is for "enthalpy of formation" and m and n represent the appropriate stoichiometric coefficients for each substance. The following table lists some enthalpy of formation values for selected substances. Substance ΔHf∘ (kJ/mol) NaOH(aq) −469.1 MgCl2(s) −641.8 NaCl(aq) −407.3 Mg(OH)2(s) −924.5...

Question

What do you think is more important for understanding the energy content of foods, enthalpy or...

Solutions

Expert Solution

Related Solutions

A. Do you think the enthalpy of a methane combustion is more or less negative than...

What do you think of Amazon's acquisition of Whole Foods?

1)What do you think was more important for manufacturing growth in the United States in the...

Enthalpy H is a measure of the energy content of a system at constant pressure. Chemical...

do you think that descriptive analysis or inferential analysis is more important

Which do you think is more important for organizations: downward communication or upward communication? What is...

Discuss the importance of Economic Profit and Marginal Cost. What do you think is more important...

What do you think is the future of the nuclear energy? Discuss.

Which do you think is more important: the internal auditor or the external auditor? Why?

Which do you think is more important to performance and effectiveness: hiring followers with high levels...