CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Molar and Specific Heat Capacity

What will be ...

Question

What will be the amount of heat evolved by burning 10 L of methane under standard conditions?
(Given heats of formation of $C H_{4}, C O_{2}$ and $H_{2} O$ are -76.2, -398.8 and -241.6 kJ $m o l^{- 1}$ respectively)

A

805.8 kJ

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

398.8 kJ

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

359.7 kJ

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

D

640.4 kJ

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 359.7 kJ
$C H_{4} + 2 O_{2} \to C O_{2} + 2 H_{2} O$
$Δ H = H_{P} - H_{R}$
$= Δ H_{f} (C O_{2}) + 2 Δ H_{f} (H_{2} O) - [Δ_{f} (C H_{4}) + 2 Δ H_{f} (C O_{2})]$
$= - 398.8 - (2 \times 241.6) - (- 76.2 + 2 \times 0)$
$= - 805.8 k J$
$22.4 L o f C H_{4} (1 m o l e) g i v e s 805.8 k J$
$10 L o f C H_{4} w i l l g i v e \frac{805.8}{22.4} \times 10 = 359.73 k J$

Suggest Corrections

thumbs-up

0

Similar questions

Q. What will be the amount of heat evolved by burning

10 L

of methane under standard conditions?
(Given heats of formation of

C H_{4}, C O_{2} a n d H_{2} O a r e - 76.2, - 398.8 a n d - 241.6 k J m o l^{- 1}

Q. The standard heat of formation of

C H_{4 (g)}, C O_{2 (g)}

H_{2} O_{(g)}

- 76.2, - 398.8, - 241.6

k J m o l^{- 1}

respectively. the amount of heat evolved

(i n k J)

m^{3}

of methane measured under normal conditions is

Q. The standard heats of formation of

{C H}_{4} (g), {C O}_{2} (g)

H_{2} O (g)

- 76.2, - 398.8

- 241.6

k J {m o l}^{- 1}

respectively. Calculate the amount of heat evolved by burning

1 m^{3}

of methane measured under normal conditions.

Q. The standard heat of formation of

C H_{4 (g)}, C O_{2 (g)}

H_{2} O_{(g)}

- 76.2, - 398.8, - 241.6

k J m o l^{- 1}

respectively. the amount of heat evolved

(i n k J)

m^{3}

of methane measured under normal conditions is

Q. The standard heat of formation of

C H_{4} (g), C O_{2} (g) a n d H_{2} O (g)

are -76.2, -398.8 and -241.6

k J m o l^{- 1}

respectively. Calculate the amount of heat evolved by burning

1 m^{3}

of methane measured under normal conditions.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Heat Capacity

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Molar and Specific Heat Capacity

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon