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Standard XII

Biology

Gaseous Exchange in Plants

In the proces...

Question

In the process of respiration in plants 180g of glucose plus 192 g of oxygen produce ___________________.

132 g of

C O_{2}

, 54 g of water and 343 Cal. of energy

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264 g of

C O_{2}

, 108 g of water and 686 Cal. of energy

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528 g of

C O_{2}

, 216 g of water and 1372 Cal. of energy

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Large amount of

C O_{2}

, no water and no energy

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Solution

The correct option is B 264 g of $C O_{2}$ , 108 g of water and 686 Cal. of energy
Molecular weight of glucose is 180, 6 molecules of oxygen are 192, 6 molecules of $C O_{2}$ are 264 while molecules of water are 108. Calories with capital C(cal) is kcal.

Suggest Corrections

Similar questions

Q. Take

C_{i c e} = 0.53 c a l / g -^{\circ} C

C_{w a t e r} = 1.0 c a l / g -^{\circ} C

(L_{f})_{w a t e r} = 80 c a l / g

and

(L_{v})_{w a t e r} = 529 c a l / g

. A closely thermally. Insulated vessel contains

100 g

of water at

0^{\circ} C

. If the air from this vessel is rapidly pumped out, intensive evaporation will produce cooling and as a result of this water will freeze. How much ice will be formed by this method (in

g

) ? If latent heat of fusion is

80 c a l / g

and of evaporation

560 c a l / g

Q. Take

C_{i c e} = 0.53 c a l / g -^{\circ} C

C_{w a t e r} = 1.0 c a l / g -^{\circ} C

(L_{f})_{w a t e r} = 80 c a l / g

and

(L_{v})_{w a t e r} = 529 c a l / g

. Equal masses of ice (at

0^{\circ} C

) and water are in contact. Find the temperature of water needed to just melt the complete ice.

Q. Take

C_{i c e} = 0.53 c a l / g -^{\circ} C

C_{w a t e r} = 1.0 c a l / g -^{\circ} C

(L_{f})_{w a t e r} = 80 c a l / g

and

(L_{v})_{w a t e r} = 529 c a l / g

. In a container of negligible mass

140 g

of ice initially at

- 15^{\circ} C

is added to

200 g

of water that has a temperature of

40^{\circ} C

. If no heat is lost to the surroundings, what is the final temperature of system in

^{\circ} C

Q. How many grams of methane need to react with 32 g of oxygen to make 22 g of

C O_{2}

and 18 g of water?

Q. How much energy is needed to melt

100 g

of water?

Δ H_{v} = 540 c a l / g

Δ H_{f} = 80 c a l / g

C_{w a t e r} = 1 c a l / g^{o} C

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In the process of respiration in plants 180g of glucose plus 192 g of oxygen produce ___________________.

The correct option is B 264 g of CO2, 108 g of water and 686 Cal. of energyMolecular weight of glucose is 180, 6 molecules of oxygen are 192, 6 molecules of CO2 are 264 while molecules of water are 108. Calories with capital C(cal) is kcal.

The correct option is B 264 g of $C O_{2}$ , 108 g of water and 686 Cal. of energy
Molecular weight of glucose is 180, 6 molecules of oxygen are 192, 6 molecules of $C O_{2}$ are 264 while molecules of water are 108. Calories with capital C(cal) is kcal.