The enthalpy of combustion of mol. Wt. 180 glucose is -2808 KJ `"mol"^(-1)` at `25^(@)`C . X and Y grams of glucose do you need to consume respectivel

Question

The enthalpy of combustion of mol. Wt. 180 glucose is -2808 KJ `"mol"^(-1)` at `25^(@)`C . X and Y grams of glucose do you need to consume respectivel

The enthalpy of combustion of mol. Wt. 180 glucose is -2808 KJ `"mol"^(-1)` at `25^(@)`C . X and Y grams of glucose do you need to consume respectively cases [Assume wt=62.5 Kg].
(a) to climb a flight of stairs rising through 3M.
to climb a mountain of altitude 3000 M?
Assume that 25% of enthalpy can be converted to useful work.
X and Y are related as X=mY, then find m.

Monjur Alahi

7 views

2025-01-04 04:42

1 Answers

Related Questions

From the following data : Enthalpy of formation of `CH_(3)CN`=87.86 kJ/mol Enthalpy of formation of `C_(2)H_(6)=-` 83.68 kJ/mol Enthalpy of sublimatio

2 Answers 4 Views

The enthalpy of formation of `C_(2)H_(5)OH(l)` is `-66 k Cal//mol`. The enthalpy of combustion of `CH_(3)-O-CH_(3)` is `-348 k Cal//mol`. Given that t

2 Answers 9 Views

The standard enthalpy of combustion of sucrose is `-5645 kJ mol^(-1)`. What is the advantage (in `kJ mol^(-1)` of energy released as heat) of complete

2 Answers 5 Views

When x grams of steam at `100^(@)C` is mixed with y grams of ice at `0^(@)C`, we obtain `(x + y)` grams of water at `100^(@)C`. What is the ratio `y//

2 Answers 5 Views

A sample of metal weights 210 grams in air 180 grams n water and 120 grams in an unknown liquid then

2 Answers 5 Views

For a reaction, `Ag_(2)O(s)hArr2Ag(s)+(1)/(2)O_(2)(g)` `DeltaH,DeltaS and T ` are 40.63 kJ `mol^(-1)`, 108.8 J `K^(-1)mol^(-1) and 373.3K` respectivel

2 Answers 5 Views

Enthalpy of neutralization of `HCl` by `NaOH` is `-57.1 J//mol` and by `NH_(4)OH` is `-51.1 KJ//mol`. Calculate the enthalpy of dissociation of `NH_(4

2 Answers 6 Views

The enthalpy of formation of `H_(2)O(l)` is `-285 KJ mol^(-1)` and enthalpy of neutralization of a stron acid and a strong bas is `-55 KJ mol^(-1)`. W

2 Answers 5 Views

The `DeltaH_(f)^(0)(KF,s)` is `-563 kJ mol^(-1)`. The ionization enthalpy of `K(g)` is `419 kJ mol^(-1)`. and the enthalpy of sublimation of potassium

2 Answers 6 Views

If the electron gain enthalpy of S and Se are `-200` KJ `" mol"^(-1)` and `-195 KJ " mol"^(-1)` respectively. Wha is the electron gain enthalpy of O a

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - 1
(a) `0.25 xx 2808 xx (x)/(180) xx 10^(3)=62.5 xx 9.81 xx 3`
`x=0.47 ` gm
(b) `0.25 xx 2808 xx 10^(3) xx (Y)/(180) =62.5 xx 9.81 xx 3000.`
`{:(y=470 "gm". ," "implies," " y=0.47 "kg"., ,),(X=mY ," "implies ," "0.47 = m xx 0.47 ," " implies, " " m=1):}`

7 views Answered 2023-02-05 15:29