Determine the heat energy needed to increase the temperature of $5 mol$ of mercury by $10 K$ . The value of heat capacity for given amount of mercury is $27.8 {J K}^{- 1}$

208.5 J

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2780 J

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278 J

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2085 J

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Solution

The correct option is C $278 J$
We know
$C_{m} = \frac{Q}{Δ T} J/K$
According to given data,
$= 27.8 = \frac{Q}{10}$
$\Rightarrow Q = 27.8 \times 10$
$\Rightarrow Q = 278 J$
Hence, energy required to increase the temperature by $10 K$ of mercury = $278 J$

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Determine the heat energy needed to increase the temperature of 5 mol of mercury by 10 K. The value of heat capacity for given amount of mercury is 27.8 J K−1

The correct option is C 278 JWe know Cm=QΔT J/K According to given data, =27.8=Q10 ⇒Q=27.8×10 ⇒Q=278 J Hence, energy required to increase the temperature by 10 K of mercury =278 J

Determine the heat energy needed to increase the temperature of $5 mol$ of mercury by $10 K$ . The value of heat capacity for given amount of mercury is $27.8 {J K}^{- 1}$

The correct option is C $278 J$
We know
$C_{m} = \frac{Q}{Δ T} J/K$
According to given data,
$= 27.8 = \frac{Q}{10}$
$\Rightarrow Q = 27.8 \times 10$
$\Rightarrow Q = 278 J$
Hence, energy required to increase the temperature by $10 K$ of mercury = $278 J$