Chemistry

The body releases the same amount of heat.

17

it is a law of conservation of energy

i.e., one form of energy can be changed to another form of energy wothout any loss of energy....

law of conservation of energy.

1 cal ~ 4.18 J <-- known

6.5 kcal = 6500 cal = 4.18 [J / cal] * 6500 [cal] = 27170 [J] or 2.72e+4 [J]

specific heat(;

your welcome!

The specific heat of copper is 0.093 cal/g(C°) or 390 J/kg(C°).

During an endothermic process heat is absorbed.

Endothermic chemical reactions absorb more energy than they release, while exothermic chemical reactions release more energy than they absorb.

It was commonly described as a Solid sphere

No

An Endothermic Process absorbs heat.

An Exothermic Process releases heat.

The reaction is exothermic.

At 20°C the specific heat capacity of water is 4.183 J/g °C or 4.183 J/gK.

q sys = -q surr

0.92

Using the following thermochemical data, what is the change in enthalpy for the following reaction: 3H2(g) + 2C(s) + ½O2(g) → C2H5OH(l) C2H5OH(l)+3O2(g)→2CO2(g)+3H2O(l), ΔH = –1367 kJ/mol C(s)+O2(g)→CO2(g), ΔH = –393.5 kJ H2(g)+½O2(g)→H2O(l), ΔH = –285.8 kJ a. -277.6 kJ/mol b. -194.7 kJ/mol c. 194.7 kJ/mol d. 486 kJ/mol