Given standard enthalpy of formation of co and co2

Asked by admin @ 23/08/2021 in Chemistry viewed by 339 People

Given standard enthalpy of formation of co (-110 kj mol) co2 (-394 kj mol) the heat of combustion when one mole graphite burns

Answered by admin @ 23/08/2021

Answer : The heat of combustion when one mole graphite burns is, -394 kJ

Explanation :

Standard formation of reaction : It is a chemical reaction that forms one mole of a substance from its constituent elements in their standard states.

The balanced chemical equation for the standard formation reaction of gaseous carbon monoxide will be,

$C(graphite)+\frac{1}{2}O_2(g)\rightarrow CO(g)$ (incomplete combustion)

The standard enthalpy of $CO$ = -110 kJ/mol

The balanced chemical equation for the standard formation reaction of gaseous carbon dioxide will be,

$C(graphite)+O_2(g)\rightarrow CO_2(g)$ (complete combustion)

The standard enthalpy of $CO_2$ = -394 kJ/mol

The complete combustion of carbon graphite gives carbon dioxide as a product.

So, the heat of combustion when one mole graphite burns is, -394 kJ.

Enthalpies of formation of co co2 n2o and n2o4

Asked by admin @ 17/08/2021 in Chemistry viewed by 275 persons

Question 6.12 Enthalpies of formation of CO(g), CO2(g), N2O(g) and N2O4(g) are –110 kJ mol–1, – 393 kJ mol–1, 81 kJ mol–1 and 9.7 kJ mol–1 respectively. Find the value …

Calculate the standard enthalpy of formation of ch3oh

Asked by admin @ 26/08/2021 in Chemistry viewed by 317 persons

Calculate the standard enthalpy of formation of CH3OH(l) from the following data:CH3OH (l) + 3/2 O2(g) → CO2(g) + 2H2O(l) ; ΔrH0 = –726 kJ mol–1C(g) + O2(g) → CO2(g) …

At 300k the standard enthalpies of formation of c6h5cooh

Asked by admin @ 20/08/2021 in Chemistry viewed by 291 persons

at 300 k the standard enthalpies of formation of c6h5cooh ,co2 and h2o are -408 ,-393 and -286 kj mol-1 respectively calculate heat of combustion of benzoic acid at (1) …

What is the enthalpy for reaction 1 reversed? reaction 1 reversed: co2→co + 12o2

Asked by maham237 @ 15/12/2020 in Chemistry viewed by 403 persons

What is the enthalpy for reaction 1 reversed? reaction 1 reversed: co2→co + 12o2 express your answer numerically in kilojoules per mole?

The standard enthalpy of formation of nh3 is 46

Asked by admin @ 13/08/2021 in Chemistry viewed by 300 persons

the standard enthalpy of formation of NH3 is _46.0 kj/mol.if the enthalpy of formation of H2 from its atom is _436 kj/mol and that of N2 is _712 kj/mol,the average …

At 300 k the standard enthalpies of formation of c6h5cooh

Asked by admin @ 06/08/2021 in Chemistry viewed by 315 persons

at 300 k the standard enthalpies of formation of c6h5cooh ,co2 and h2o are -408 ,-393 and -286 kj mol-1 respectively calculate heat of combustion of benzoic acid at (1) …

The enthalpy of formation of ammonia is 46

Asked by admin @ 29/08/2021 in Chemistry viewed by 262 persons

The enthalpy of formation of ammonia is -46.0koj mol-1 the enthalpy change for the reaction 2nh3 (g)2n2 (g)+3h2(g) is

Standard enthalpy of vaporization for water at 100 c

Asked by admin @ 23/08/2021 in Math viewed by 323 persons

Standard enthalpy of vaporization for water at 100 c

One mole of mixture of co and co2 requires

Asked by admin @ 20/08/2021 in Chemistry viewed by 426 persons

one mole of mixture of CO and CO2 requires 20gm.NaOH to convert all the CO2 into Na2CO3.hiw many more grams of NaOH would it require for conversion into Na2CO3,if the …

One mole of a mixture of co and co2

Asked by admin @ 20/08/2021 in Chemistry viewed by 305 persons

one mole of mixture of CO and CO2 requires 20gm.NaOH to convert all the CO2 into Na2CO3.hiw many more grams of NaOH would it require for conversion into Na2CO3,if the …

1 l of a mixture of co and co2

Asked by admin @ 17/08/2021 in Science viewed by 329 persons

100 points question 1 litre of a mixture of CO and CO2 is taken. This mixture is passed through a tube containing red hot charcoal. The volume now becomes 1.6 …

Enthalpy of formation of water

Asked by maham237 @ 09/01/2021 in Chemistry viewed by 285 persons

Calculate the enthalpy of combustion of butane, C4H10, for the formation of H2O and CO2 The enthalpy of formation of butane is -126 kJ/mol.

The enthalpy of formation of water is –285.8 kj/mol. what can be inferred from this statement?

Asked by maham237 @ 22/12/2020 in Chemistry viewed by 322 persons

Experimentally show that co2 is given out during respiration

Asked by admin @ 17/08/2021 in Science viewed by 298 persons

Experiment to show that carbon dioxide is given out during respiration

Enthalpy of combustion of carbon to co2 is 393.5

Asked by admin @ 11/08/2021 in Chemistry viewed by 267 persons

Question 6.11 Enthalpy of combustion of carbon to CO2 is –393.5 kJ mol–1. Calculate the heat released upon formation of 35.2 g of CO2 from carbon and dioxygen gas. Class …