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Standard XII

Chemistry

Heat of Reaction

An ideal gas ...

Question

An ideal gas undergoes isothermal compression from ${5 m}^{3}$ to $1 m^{3}$ against a constant external pressure of $4 N m^{- 2}$ . Heat released in this process is used to increase the temperature of $1$ mole of $A l$ . If the molar heat capacity of $A l$ is $24 J {m o l}^{- 1} k^{- 1}$ , the temperature of $A l$ is increased by :

\frac{3}{2} K

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\frac{2}{3} K

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1 K

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2 K

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Solution

The correct option is B $\frac{2}{3} K$

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Similar questions

Q. An ideal gas undergoes isothermal compression from

5 m^{3}

1 m^{3}

against a constant external pressure of

4 {N m}^{- 2}

. Heat released in this process is used to increase the temperature of

1 m o l e

A l

. If molar heat capacity of

A l

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

, the temperature of

A l

increased by:

Q. Calculate the number of

k J

of heat necessary to raise the temperature of

60.0 g

of aluminium from

35^{o} C

55^{o} C

. Molar heat capacity of

A l

24 J {m o l}^{- 1} K^{- 1}

Q. Calculate the number of

k J

necessary to raise the temperature of

60.0 g

of aluminum from

35^{o} C

55^{o} C

. Molar heat capacity of

A l

{24 J m o l}^{- 1} K^{- 1}

Calculate the number of kJ of heat necessary to raise the temperature of 60.0 g of aluminium from 35°C to 55°C. Molar heat capacity of Al is 24 J mol^–1K^–1.

The heat required to rise the temperature of 54 g of aluminium from $40^{\circ} C$ to $60^{\circ} C$ in J is (molar heat capacity of aluminium in this temperature range is 24 $J m o l^{- 1};$ atomic weight of Al is 27 g)

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An ideal gas undergoes isothermal compression from 5m3 to 1 m3 against a constant external pressure of 4 Nm−2. Heat released in this process is used to increase the temperature of 1 mole of Al. If the molar heat capacity of Al is 24 J mol−1k−1, the temperature of Al is increased by :

The correct option is B 23 K

The correct option is B $\frac{2}{3} K$